Overview

• Cal Fire’s State Fire Marshal, the ATF and Yolo County Sheriff’s Office have finished on-site evidence collection and shifted the investigation off-site.
• Investigators executed search warrants at Devastating Pyrotechnics owner Kenneth Chee’s San Francisco home to seize business and license records now under review.
• State Fire Marshal Daniel Berlant has highlighted missing local permits for fireworks manufacturing and storage along with a denied federal explosives license as major regulatory red flags.
• Multiple detonations during the July 1 explosion at the rural Esparto warehouse have complicated origin analysis and evidence recovery.
• The Yolo County coroner’s office identified all seven victims this week, and families are awaiting a timeline for determining the blast’s cause.