Five Defendants Face Murder Charges Following Fatal Fireworks Facility Explosion in Rural Yolo County

Yolo County Lt. Samuel Machado and four others face murder charges after an illegal fireworks explosion killed seven. Read the latest on the indictments.

By: AXL Media

Published: Apr 11, 2026, 10:07 AM EDT

Source: Information for this report was sourced from Local News Matters

Criminal Indictments Filed in Deadly Industrial Disaster

Legal proceedings have commenced against seven individuals linked to a catastrophic explosion at an unauthorized fireworks storage site in rural Yolo County. On April 10, 2026, the Yolo County District Attorney’s Office announced that five defendants are facing seven counts of murder each following the July 1, 2025, incident. The explosions occurred at a farm near Esparto, leveling multiple structures and triggering a wildfire that consumed nearly 80 acres of agricultural land. Authorities have identified the business entities involved as Devastating Pyrotechnics, Devastating Pyro Displays, and BlackStar Fireworks, all of which were allegedly operating without legal authorization.

Law Enforcement Personnel Implicated in Illegal Operations

The investigation has notably implicated high-ranking local law enforcement, as the property where the explosion occurred was owned by Yolo County Sheriff’s Office Lt. Samuel Machado and his wife, Tammy Machado. Lt. Machado is among those facing murder charges, alongside Kenneth Kin Chee, Gary Chan Jr., Jack Lee, and Douglas Michael Tollefsen. Beyond the murder counts, these individuals, along with Craig Allen Cutright and Ronald John Botelho III, face an array of conspiracy charges related to the possession and transportation of explosive devices. The involvement of active sheriff’s department employees has raised significant questions regarding the integrity of local safety enforcement.

Civil Grand Jury Exposes Years of Regulatory Neglect

A scathing civil grand jury report released in late March 2026 suggests that the illegal fireworks wholesale operation was not a hidden enterprise. According to the findings, nearly a dozen county employees and political figures were aware of the business activities on the Machado property for years but failed to initiate enforcement actions. The report describes an "atmosphere of permissiveness," suggesting that county officials may have avoided antagonizing sheriff’s department personnel. Despite the presence of fire officials and code enforcement officers who were cognizant of the risks, no preventative measures were taken prior to the fatal July blast.