Eight Arrested in Deadly California Fireworks Explosion

Five suspects, including a former police officer, face murder charges in the July blast that killed 7 people.

Apr. 11, 2026 at 12:33am

An extreme close-up photograph of a charred and twisted piece of metal debris, creating a stark, gritty, investigative aesthetic.The aftermath of a deadly fireworks explosion in California exposes the dangers of illegal pyrotechnics operations.Esparto Today

Officials in Northern California have arrested eight people, including a former local police officer, in connection with an explosion at a fireworks warehouse last July that killed seven people. Five of those arrested have been charged with murder.

Why it matters

The deadly explosion in Esparto, California sparked a wildfire, prompted evacuations, and caused several cities and towns to cancel or postpone Fourth of July fireworks shows, highlighting the dangers of illegal fireworks operations and the need for stronger oversight and regulation.

The details

Up to a million pounds of explosives were being stored near a residence on the site at the time of the explosion. The arrests were related to a long-running scheme to conduct a 'massive and illegal' operation to import and sell fireworks, including the usage of property of a former lieutenant of the county sheriff's office and his wife who worked for the office.

  • The blast occurred last July in Esparto, California.
  • The arrests and indictments were announced on Friday, April 10, 2026.

The players

Jeff Reisig

The Yolo County district attorney who announced the arrests and indictments.

Sam Machado

A 45-year-old former lieutenant of the county sheriff's office who was arrested.

Tammy Machado

A 46-year-old administrative employee of the county sheriff's office who was arrested, and the wife of Sam Machado.

Kenneth Chee

The 48-year-old owner of Devastating Pyrotechnics, which officials said stored fireworks at the site.

Gary Chan

A 43-year-old who was arrested.

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What they’re saying

“The arrests were related to a long-running scheme to conduct a 'massive and illegal' operation to import and sell fireworks.”

— Jeff Reisig, Yolo County District Attorney

What’s next

The suspects will face a judge in the coming weeks to determine if they will be granted bail or remain in custody as the case proceeds.

The takeaway

This case highlights the serious public safety risks posed by illegal fireworks operations and the need for stronger regulation and enforcement to prevent such deadly incidents in the future.