Contra Costa Herald

News Of By and For The People of Contra Costa County, California

Oakland woman charged as accessory after the fact in Walnut Creek double murder

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In romantic relationship with alleged killer; also charged with first-degree residential burglary, destroying evidence

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office

Martinez, California – The Contra Costa District Attorney’s Office has filed two felony charges and one misdemeanor charge against an Oakland woman in connection with the September 18th murders of two women in Walnut Creek.

45-year-old Yan Wang (born 7/22/1980) will be arraigned at 1:30 pm on September 30th in Contra Costa Superior Court in Martinez. She faces two felony and one misdemeanor charges related to the murders of Linlin Guo and Beimin Cheng.

The primary suspect, Howard Wang, was charged with the unlawful killing of both women on September 22nd. Howard Wang was married to Linlin Guo but was in a romantic relationship with Yan Wang at the time of the murders. Howard Wang is scheduled for arraignment on October 3rd in Martinez and faces life in prison without the possibility of parole if convicted.

Yan Wang, who has no familial relation to Howard Wang, faces the following charges:

  • PC 32 (Felony) – Accessory After the Fact: Yan Wang allegedly aided Howard Wang with knowledge following the murders and with intent to help him avoid arrest, trial, conviction, and punishment for killing his wife, Linlin Guo, and her mother, Beimin Cheng.
  • PC 459 (Felony) – First Degree Residential Burglary: On or about September 19th, Yan Wang allegedly entered the residence owned by Howard Wang and Linlin Guo with intent to commit larceny.
  • PC 135 (Misdemeanor) – Destroying Evidence: On September 18th, Yan Wang allegedly destroyed cellphones to prevent evidence from being produced.

“This case serves as a sobering reminder of domestic violence’s far-reaching consequences,” said Contra Costa District Attorney Diana Becton. “Our office will pursue justice with the seriousness and urgency this tragedy demands.”

According to the Contra Costa County Sheriff’s Office, the five-feet, seven-inch tall, 105-pound Yan Wang is being held in the West County Detention Facility on no bail.

Case No. 01-25-03240 | The People of the State of California v. Yan Wang

Allen D. Payton contributed to this report.

Three men charged for orchestrating San Ramon jewelry store smash and grab armed robbery

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Surveillance video footage shows about 20 masked suspects entered Heller’s Jewelers in San Ramon for the smash and grab armed robbery on Monday. Source: Unlimited L’s (@unlimited_ls) / X

Michael Lamont Ray, Jr., 31 & Ira Raheem Austin, 19, of San Francisco, Jimmy Mack Ray, 27, of Vallejo

Among about 20 thieves who stole over $1 million of merchandise, used stolen vehicles for getaway

Michael Ray held on $300K bail; Jimmy Ray with history of arrests dating back to 2017 held on no bail; Austin bonded out of custody

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office

Martinez, California – Three Bay Area men are facing serious felony charges after orchestrating a brazen smash and grab armed robbery at a San Ramon jewelry store on Monday, September 22, 2025, stealing more than one million dollars in merchandise.

The Contra Costa District Attorney’s Office announced charges on Thursday, September 25, 2025, against Michael Lamont Ray, Jr., 31, and Ira Raheem Austin, 19, both of San Francisco, along with Jimmy Mack Ray, 27, of Vallejo, in connection with the September 22nd robbery involving about 20 masked suspects at Heller Jewelers in the City Center Bishop Ranch mall on Bollinger Canyon Road.

The trio executed a scheme that began with stealing vehicles and culminated in an escape that involved gunfire. Each defendant now faces 13 counts of second-degree robbery and one count of conspiracy to commit a crime, with special enhancements under Proposition 36 due to the value of the stolen property.

The conspiracy charges detail 11 overt criminal acts that involved a coordinated operation. The individuals stole vehicles to use in the crime, forcibly entered the jewelry store, smashed display cases to access and steal valuable merchandise and fired a weapon to shatter a glass door during their getaway.

The suspects then fled the scene in the stolen vehicles and evaded pursuing San Ramon Police officers until officers with Oakland Police were able to apprehend the suspects after they were seen leaving a building on the 9900 block of International Boulevard in Oakland.

“Our communities deserve safety from conduct like the audacious daylight robbery in San Ramon,” said Contra Costa District Attorney Diana Becton. “Thanks to the excellent investigative work by the San Ramon Police Department, these defendants will face significant punishment for the offenses they committed.”

Becton emphasized her office’s commitment to prosecuting theft crimes, stating, “My Office will continue to work with San Ramon PD and other law enforcement partners to identify other perpetrators who participated in this brazen robbery and charge them accordingly.”

Jimmy Ray will be arraigned on September 29th at 1:30 pm in Contra Costa Superior Court in Martinez. According to the Contra Costa County Sheriff’s Office, the five-feet, 11-inch tall, 170-pound suspect is non-Hispanic, was born 2/20/1998 and being held on no bail. According to localcrimenews.com, Jimmy Ray has a history of arrests by multiple agencies dating to 2017, including by Solano County Sheriff’s Deputies on July 19, 2025, for crimes including possession of ammunition, manufacturing, importing or sale of a large-capacity magazine and violation of probation. Plus, five times for robbery, three times for grand theft, twice each for burglary, use of a firearm, addict in possession of a firearm, elder or dependent adult abuse, threats of violence and vandalism, as well as for human trafficking of a victim under 18, unlawfully causing a minor to engage in a commercial sex act, petty theft and a variety of other charges.

According to the Alameda County Sheriff’s Office, the five-feet, 10-inch tall, 185-pound Michael Ray is Black, was born 7/21/1994 and is being held in the Santa Rita Jail in Dublin on $300,000 bail. He is scheduled to be arraigned on Sept. 30 at 8:30 AM in Alameda County Superior Court, Dept. 112 of the Wiley W. Manuel Courthouse in Oakland.

Michael Ray was also arrested on an outstanding warrant for charges including PC1170(B)-F circumstances in aggravation under CRC 4.421, carrying a concealed firearm on person and in a city, corporal injury to a relationship partner, grand theft exceeding $950 and vandalism under $400 damage.

According to the Contra Costa County Sheriff’s Office, as of Wednesday, Sept. 24 at 5:19 AM Austin had bonded out of custody.

Case No. 01-25-03128 | The People of the State of California v. Michael Lamont Ray, Jr.

Case No. 01-25-03129 | The People of the State of California v. Jimmy Mack Ray

The People of the State of California v. Ira Raheem Austin

Allen D. Payton contributed to this report.

Walnut Creek man charged in double murder of his wife, mother-in-law

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Faces additional charges of making criminal threats of death and great bodily injury in 2024, preventing wife from calling police in 2023

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office

Martinez, California – A 43-year-old Walnut Creek resident was charged by the Contra Costa District Attorney’s Office in a double murder.

Howard Wang was scheduled to be arraigned at 1:30 pm on September 23rd in Contra Costa Superior Court in Martinez for the murder of his wife Linlin Guo, and mother-in-law, Beimin Cheng. The murders occurred on September 18th, 2025, at the couple’s residence in Walnut Creek. The charges include special circumstances enhancements for multiple murders. If found guilty by a jury, Wang could be sentenced to life in prison without the possibility of parole.

Additional charges against Wang include making criminal threats of death and great bodily injury against Linlin Guo around August 31st, 2024, and preventing Linlin Guo from reporting a crime to law enforcement on January 7th, 2023.  As previously reported, the five-foot, 10-inch tall, 183-pound Wang was also arrested on Jan. 7, 2023, by Walnut Creek Police for battery on a spouse, cohabitant or former spouse, removing, destroying or damaging a wireless communication device to prevent summoning assistance or law enforcement.

Contra Costa District Attorney Diana Becton said, “This tragic case is a stark reminder of the devastating toll domestic violence takes — not only on the victims whose lives were lost, but on families and the community as a whole. Our office is committed to aggressively pursuing justice in this case.”

Case No. 01-25-03009 | The People of the State of California v. Howard Wang

See Howard Wang Charging Document

Allen D. Payton contributed to this report.

Contra Costa DA Becton issues statement on Antioch, Pittsburg police corruption cases

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On September 18th, 2025, a federal jury in Oakland, CA found a former Antioch police officer guilty of conspiracy against rights, marking another step toward accountability in a painful chapter for Antioch and Pittsburg. (See related article) (See related article)

This case is part of a broader investigation that began in 2021 into misconduct by several officers entrusted to protect the public, including actions that fall under the broad category of crimes involving moral turpitude.

When a law is broken—especially by those sworn to enforce it—it is not just a legal violation, but an offense against the entire community. That is why in every criminal case, the District Attorney represents The People of the State of California. The harm caused by these individuals was felt by the public at large, and it is our duty and responsibility to pursue justice on behalf of all those affected.

I am grateful to our federal partners, our state and local investigators, and prosecutors who worked tirelessly on these cases on behalf of the residents of Antioch and Pittsburg. Thanks to these combined efforts, both cities have begun to rebuild trust and take meaningful steps toward restoring integrity in their public institutions. These efforts are crucial to ensuring safer, more just communities for all. Our office remains firmly committed to that mission.

Diana Becton

District Attorney, Contra Costa County

West County: Contra Costa DA reaches settlement with C&H Sugar Company, Inc. for 2022 air emission violations

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Crockett-based company will pay $500K in penalties & costs

By Ted Asregadoo, Public Information Officer, Contra Costa County District Attorney’s Office

Martinez, California – Contra Costa County District Attorney Diana Becton announced Tuesday, Sept. 16, 2025, a settlement with C&H Sugar Company Inc. for odor violations in 2022.

The emissions violations by C&H Sugar occurred on various dates between September 8th and October 14th, 2022, at a wastewater treatment plant the company jointly owns at Dowrelio Drive in the unincorporated community of Crockett.

Operational disruptions at the wastewater treatment plant generated excessive sewage odors that adversely affected Crockett residents. The problem was exacerbated by unusually high temperatures in the area during those periods.

Following an investigation by the Bay Area Air Quality Management District (BAAQMD), the case was referred to the Contra Costa County District Attorney’s Office for enforcement action.

“Working with BAAQMD during this process produced a compliance framework to help prevent future public nuisances,” said District Attorney Diana Becton. “C&H Sugar was cooperative throughout the process and agreed to specific enhanced compliance measures.”

The judgment provides for $400,000 in civil penalties, $100,000 in costs and C&H Sugar will implement the following compliance measures: purchase and install a backup generator, replacement of existing diffuser heads in all three reactors, upgrade the “Blowers” including replacement or refurbishment of the motors, complete comprehensive internal audit of operations and establish 24-hour toll-free community hotline.

The Contra Costa County District Attorney’s Office works closely with environmental regulatory agencies to ensure compliance with air quality standards and protect public health throughout the county.

Case No. C25-02616 | The People of the State of California v. C&H Sugar Company, Inc.

Brentwood youth football referee sentenced on child exploitation, firearm charges

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Tommy Vance was arrested with a cache of illegal firearms and ammunition on April 10, 2025. Photos: Brentwood PD

48-year-old Tommy Ray Vance will serve two years, 10 months in state prison, register as sex offender for 20 years

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office

Martinez, California – A Brentwood man was sentenced in Contra Costa County Superior Court after entering guilty pleas to felony charges of attempted sexual abuse of a child under 14 and possession of a firearm by a convicted felon.

48-year-old Tommy Ray Vance (born 12-19-1976) was sentenced by the Honorable Joni T. Hiramoto on August 18th, 2025, to two years and 10 months in state prison. Vance was further ordered to register for 20 years as a sex offender upon his release from custody.

Tommy Ray Vance following his arrest by on April 10, 2025. Photo: Brentwood PD

The offenses for which Vance was sentenced occurred on April 9 and 10, 2025, when Vance attempted to coerce a person, whom he reasonably believed to be a 13-year-old child, into meeting him to engage in sex acts. The minor was in fact an undercover Detective with the Contra Costa County Sheriff’s Office. When Vance arrived at a park in Brentwood, he was arrested by patrol units of the Brentwood Police Department.

Investigators with the Internet Crimes Against Children Task Force served a search warrant at Vance’s home after his arrest and discovered over a dozen firearms. Investigators quickly learned Vance was prohibited from possessing firearms as a result of a 1996 conviction in Contra Costa County for Arson, Intimidating a Witness and Assault with a Deadly Weapon.

At the time of Vance’s arrest, he was working part-time as a volunteer youth football referee in Contra Costa County. According to the Contra Costa County Sheriff’s Office, he is six-feet tall, 230-pounds and Hispanic.

Vance has been in custody since his arrest and will begin to serve his sentence immediately. (See related articles here and here)

“Thanks to the investigative efforts of Contra Costa County Sheriff’s Office, the Internet Crimes Against Children Task Force, and Brentwood Police, we were able to ensure this defendant faces consequences for his actions,” said District Attorney Diana Becton. “This case exemplifies our continued dedication to defending our community’s children against those who would harm them.”

Deputy District Attorney Jenna Franklin from the Sexual Assault Unit prosecuted the case. The Contra Costa County Internet Crimes Against Children Task Force led the investigation.

Case No. 01-25-01209 | The People of the State of California v. Tommy Ray Vance

Allen D. Payton contributed to this report.

Contra Costa DA Becton’s campaign announces support for her recall

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Source: Diana Becton for District Attorney campaign

CCC Deputy Sheriff’s contribute $50K; Antioch Police Officers Association explains reasons for $5,000 contribution

By Allen D. Payton

In a post on Facebook on Monday, July 28, 2025, the Becton for DA campaign surprisingly announced new support for her recall from the Deputy Sheriff’s Association and two other “major law enforcement associations.” According to recall organizer Gwynn Gabe the other two are the Antioch Police Officers Association (APOA) and Concord Police Officers Association.

“She’s been keeping track of the people who are giving us money,” he added.

The post by “Team Becton” reads: “The recall against District Attorney Diana Becton just escalated.

Three major law enforcement associations, including the Contra Costa County Deputy Sheriff’s Association, just poured tens of thousands into the recall effort—including a single $50,000 donation. Even more telling? They’ve hired the strategist behind the recalls of DAs in San Francisco and Alameda County.

This isn’t just a warning. This is a coordinated, well-funded effort to undo the will of the voters and take Contra Costa backwards.

But here’s the truth they don’t want you to remember: we’ve already won twice. And with your help, we will again, because here’s what they’re underestimating: you. Us. This community.

This is not the time to sit back. We need you on the front lines —because what’s at stake is bigger than any one election. It’s about protecting real public safety solutions, and standing up to those who want to take us backward. DA Becton has stood up for equity, justice, and real public safety. Now we must stand up for her.”

It then offers ways for opponents of the recall to “Take Action Now” including volunteering and donating through the Act Blue campaign fundraising website for Democrats currently under investigation for possible fraudulent political contributions.

The APOA Board issued the following statement about their contribution of $5,000 to the campaign to recall Becton: “The APOA was approached by members of the recall movement who asked if we would be willing to support them in their efforts to recall the DA. After careful consideration, we agreed as a board to support this endeavor in hopes that this would ultimately lead to a more transparent DA’s office that holds criminals accountable and keeps our streets safe. Whatever the outcome, we know the officers represented by the APOA will continue to work hard to keep our community safe and have a great working relationship with the DA’s office.”

Recall organizers have until 5:00 PM on Thursday, September 25, 2025, to submit 72,556 valid signatures to qualify the effort for the ballot.

 

Contra Costa DA charges Florida man, ex-girlfriend – the child’s mother with sexual abuse of a minor

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Rustom Bhagwager. Source: CCC Sheriff. Graphic: CCDA

He faces 24 felony charges, now held on $15 million bail; both face 15 years to life in state prison

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office

Martinez, California – Today, Tuesday, July 29, 2025, the Contra Costa District Attorney’s Office filed a 24-count felony complaint in Superior Court against a Florida man related to the sexual abuse of a minor between 2018 and 2023 in Contra Costa County.

34-year-old Rustom Bhagwagar is currently in custody at the Martinez Detention Facility on a $15 million and will be arraigned on 24 felony charges that include: engaging in a sexual act with a child 10 years old or younger, oral copulation with a child, forceable lewd acts upon a child, and aggravated sexual assault of a child.

This internationally covered case was originally brought to light by local media reporting after the Contra Costa Sheriff’s Office arrested Bhagwagar at SFO on Saturday.

Additionally, 45-year-old Jennifer Powell has also been charged in a related felony complaint and has been booked into the Martinez Detention Facility.  The charges in both complaints carry terms of 15 years to life in state prison. (See related article)

Due to the victim’s age and the nature of the allegations, the victim will not be named by the District Attorney’s Office in order to protect her identity.

Bhagwagar, who worked as a co-pilot with a commercial airline, was arrested on July 26th, around 9:40 pm at San Francisco International Airport by deputies with the Contra Costa Sheriff’s Office – with assistance from the Department of Homeland Security. (See related article)

Once Bhagwagar enters a plea to the charges in court, his case will proceed to a preliminary hearing of the evidence by a judge. Bahgwagar’s arraignment on the charges is scheduled for 1:35 pm in Martinez on July 30th.

District Attorney Diana Becton said, “Our office stands firmly committed to protecting children and holding those who cause harm accountable. Every child deserves to feel safe, protected, and heard when an injustice like this occurs. By pursuing these cases vigorously, we not only seek justice for victims but also work to safeguard our entire community from those who would prey on children.”

Case No. 01-25-02241 | The People of the State of California v. Rustom Bhagwagar

Case No. 01-25-02242 | The People of the State of California v. Jennifer Powell

Asregadoo was asked for Powell’s city of residence and where the crimes occurred. He later responded, “We’re not going to disclose any additional information about the defendant you’re asking about. For now, we’re hoping media outlets won’t disclose information that could negatively affect the victim. She’s listed as a Jane Doe in the complaint and is a minor.”

Allen D. Payton contributed to this report.

Pittsburg man sentenced in child sexual abuse material case

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Ricardo Garcia Perez sentenced to two years in state prison

By Ted Asregadoo, PIO, Contra Costa District Attorney’s Office

Martinez, CA – A Pittsburg man was sentenced today for aggravated possession of abusive sexual material following his conviction in Contra Costa County Superior Court on April 16th.

The Honorable John Cope sentenced 32-year-old Ricardo Garcia Perez (born 10/15/1992) to two years in state prison. Perez was further ordered to register for life as a sex offender upon his release from state prison. Perez has been in custody since his arrest and will begin to serve his sentence immediately.

In December 2024, the Internet Crimes Against Children Task Force (ICAC) launched an investigation after discovering Perez was distributing child sexual abuse material on an internet platform. After obtaining a search warrant and serving it at Perez’s residence in Pittsburg in January 2025, Perez attempted to destroy the digital evidence on an electronic device he possessed when officers entered his house.

The Contra Costa District Attorney’s Office reviewed the evidence ICAC investigators collected and charged him with a four-count felony complaint on January 28th. Two counts were for aggravated possession of child sexual abuse material, and two counts centered on the possession of child sexual abuse material [PC 311.11(c)1 and PC 311.11(a)].

“Protecting our children from online predators requires a united front,” said District Attorney Diana Becton. “Our active role in the Internet Crimes Against Children Task Force allows us to tap into a network of specialized training, forensic tools, and collaborative partnerships that are critical to investigating and prosecuting these disturbing crimes.”

The case was prosecuted by Deputy District Attorney Sydney Mastey from the Sexual Assault Unit.

The ICAC program is a joint effort spanning eleven counties dedicated to combating the growing threat of technology-facilitated child sexual exploitation and internet crimes against children. Parents are encouraged to discuss online safety with their children, and can visit the website kidsmartz.org, commonsensemedia.org or the Contra Costa District Attorney’s website for further information.

According to the Contra Costa Sheriff’s Office, the five-feet, five-inch tall, 175-pound Garcia Perez is being held in the Martinez Detention Facility..

Case No. 04-25-00382 | The People of the State of California v. Perez, Ricardo Garcia

Allen D. Payton contributed to this report.

2025 Greater Bay Area DA Summit convenes in Lafayette to address AI, Prop 36, retail theft

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2025 Greater Bay Area District Attorney Summit attendees. Source: Diana Becton for District Attorney

Elected District Attorneys and senior prosecutors from across the Bay, Northern California

By Bobbi Mauler, Executive Assistant, Contra Costa District Attorney

Area and beyond gathered in Contra Costa County for the 2025 Greater Bay Area DA Summit. The all-day, invitational summit brought together leaders to collaborate on legal strategies and share innovations that address some of the most urgent challenges facing the criminal justice system. Now in its third year, the summit has become a critical regional forum since its inception in Santa Clara County in 2022 and continuing in Napa County in 2023. The 2025 summit took place on May 16th at the Veterans Memorial Center in Lafayette.

Contra Costa County District Attorney Diana Becton opened the summit with welcoming remarks that set the tone for the day’s discussions. In her address, DA Becton emphasized the importance of cross-jurisdictional partnerships and proactive approaches to public safety:

“The Greater Bay Area Summit has proven itself to be a constructive gathering where elected DAs from the Bay Area and beyond can share ideas, engage in robust discussions, and find practical solutions to increase public safety in the communities we serve. By coming together, we strengthen our collective ability to adapt to emerging technologies and respond to evolving criminal trends.”

Following her remarks, a series of expert-led panels explored timely and complex topics, including:

  • The Use of Artificial Intelligence and Emerging Technology in Criminal Prosecution
  • Proposition 36 Implementation
  • Emerging Challenges with Race-Blind Charging
  • Legal Strategies in Combating Organized Retail Theft

Under District Attorney Becton’s leadership, the Contra Costa County District Attorney’s Office

has remained at the forefront of innovation, equity, and public safety. Hosting the summit further

reinforced her office’s role as a convener on issues that demand both legal insight and community engagement.

The 2025 Greater Bay Area District Attorney’s Summit was attended by the elected District Attorneys from the following counties:

Diana Becton, District Attorney of Contra Costa County

Lori Frugoli, District Attorney of Marin County

Ron Freitas, District Attorney of San Joaquin County

Allison Haley, District Attorney of Napa County

Thien Ho, District Attorney of Sacramento County

Brooke Jenkins, District Attorney of San Francisco County

Ursula Jones Dickson, District Attorney of Alameda County

Jeannine Pacioni, District Attorney of Monterey County

Jeff Reisig, District Attorney of Yolo County

Carla Rodriguez, District Attorney of Sonoma County

Jeffrey Rosen, District Attorney of Santa Clara County

Steve Wagstaffe, District Attorney of San Mateo County

In a post on her campaign Facebook page, Becton wrote about the Summit, “What an exciting day! I was honored to invite and host 12 elected Distrist Attorneys and senior prosecutors from across the Bay Area and beyond as we gathered in Contra Costa County for the 2025 Greater Bay Area DA Summit.

The all-day, invitational summit brought together leaders to collaborate on legal strategies and share innovations that address some of the most urgent challenges facing the criminal justice system.”

Allen D. Payton contributed to this report.