U.S. Marshals assist; held on $3.5 million bail
By Oakley Police Chief Paul Beard
On October 21, 2023, a shooting occurred at a house party in the 400 block of Shannon Way in Oakley. Tragically, a 16-year-old male died as a result of this shooting and three others (17-year-old female, 16-year-old male and 15-year-old male) sustained gunshot wounds. This case has been a top priority of the detectives of the Oakley Police Department. (See related articles here and here)
On October 25, 2023, we arrested a person in connection with these crimes (an Antioch teen who was later released) The arrest drew us closer to the facts of what happened during and after the shooting. Our detectives were provided with information from people who were previously disinclined to talk to us, and new evidence was revealed to us. (See related articles here and here)
On Thursday, November 30, 2023, at approximately 6:00 PM, the Oakley Police Department, in partnership with the U.S. Marshals Service, arrested Sean Anthony Karp (18, Oakley) for homicide. The arrest occurred I the 900 block of 2nd Street in Brentwood. According to the Contra Costa County Sheriff’s Department, he is being held in the Martinez Detention Facility on $3.5 million bail.
Our detectives have had many positive interactions with the District Attorney’s Office during the lifespan of this investigation and on occasion we have had face-to-face meetings to discuss details and updates.
I first want to acknowledge the family of the young man who lost his life in this horrible crime. I know nothing can replace what they have lost and there is a great sense of profoundness in their loss. I, along with all the members of the Oakley Police Department extend our condolences to the family.
I have said this before about this case, but it bears repeating: this does not belong in Oakley, this does not belong anywhere. Seeing how this did occur in Oakley, however, I deeply appreciate the leadership, diligence, work ethic, teamwork, and innovation I have seen out of my Investigations Unit from the onset of this case. I also appreciate the partnership we formed with the United States Marshals Service, the Contra Costa County Office of the Sheriff and other law enforcement agencies as we left nothing to chance in our pursuit of the person who was responsible for the killing of one person and the maiming of three others.
I have been briefed several times on this case and all available evidence and information supports the arrest that was made.
Stay safe Oakley.
Allen D. Payton contributed to this report.
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