Jury Convicts Pleasant Hill Resident for Aggravated Possession of Child Pornography and Attempting to Destroy Evidence

Martinez, Calif. – On Tuesday October 26, 2021, after a six-day trial, a jury in Contra Costa County found 30-year-old Pleasant Hill resident Won Kwak guilty of aggravated possession of child pornography and destroying evidence.

The jury found that on November 24, 2020, Kwak knowingly possessed over 600 images of child sexual abuse material, depicting pre-pubescent children engaged in sexually explicit conduct. The jury also found Kwak attempted to destroy evidence on his laptop computer when he deleted thousands of sexually explicit files as officers served a search warrant at his residence.

On November 24, 2020, members of the Contra Costa County Internet Crimes Against Children Task Force served a search warrant at Kwak’s residence after it was discovered someone at the residence was making child pornography files available for sharing on the internet. When officers knocked on the front door, Kwak looked through the blinds, saw the police officers, and then went to his computer and began deleting files of child pornography. Concord Detective Daren Billington, a digital forensics expert, was able to recover many of those files and demonstrate to the jury exactly what Kwak did to delete them.

Kwak’s sentencing is scheduled for January 7, 2022, in front of the Honorable Joni T. Hiramoto. Kwak faces a maximum penalty of five years in state prison. The case was prosecuted by Deputy District Attorney Max Laettner with the Interpersonal Violence Division.

This investigation was conducted by the multi-agency Internet Crimes Against Children Task Force, which is managed by the San Jose Police Department. In Contra Costa County, detectives and investigators from the Walnut Creek, Martinez, Danville, Pleasant Hill, Concord and Moraga Police Departments, the Contra Costa County Sheriff’s Office, United States Secret Service, Homeland Security Investigations, the Contra Costa County Probation Department, and Inspectors from the Contra Costa County District Attorney’s Office participate in the task force.

Parents seeking additional resources can visit www.kidsmartz.org or the website for the Silicon Valley Internet Crimes Against Children Task Force at www.svicac.org. Reports of illegal activity involving minor victims on the internet should be reported at once to your local police department.

Case information: People v. Kwak, Docket Number 01-195765-3

Contra Costa District Attorney’s Office Press Release