Crime12 April, 20261 min read
Yolo Sheriff Lieutenant Leads Illegal Fireworks Operation That Killed Seven in Esparto
Esparto fireworks warehouse blast on July 1, 2025 killed seven people. A Yolo County sheriff’s lieutenant and others were charged with murder.
Fireworks Explosion
A massive fireworks explosion killed seven people and led to murder charges against eight individuals, including a sheriff's lieutenant. Machado is accused of illegally storing more than 1 million pounds of fireworks on his property and using his law enforcement position to shield the operation. The blast destroyed a family farm and sparked a 78-acre grass fire.
Prosecutors allege a decade-long conspiracy involving Devastating Pyrotechnics and Blackstar Fireworks. The operation expanded from 13 storage containers in 2015 to more than 50 by 2025.
Indictments and Arrests
Seven people were arrested, including Machado and his wife Tammy. Tammy was charged with child and animal endangerment, tax fraud, and mortgage fraud. Other arrested individuals include Devastating Pyrotechnics owner Kenneth Chee and Blackstar Fireworks owner Craig Cutright.
The grand jury report found that county officials were aware of the illegal operation for at least three years but failed to take action. Emails noted they would tread lightly because the property was owned by deputies they work with.
Victims and Community Impact
The seven victims were identified by name and ranged in age from 18 to 45. Voller was a Stockton high school baseball standout. The explosion was felt up to 20 miles away and blew open the doors of nearby homes.
The blast forced nearby Fourth of July celebrations to be suspended. Yolo County Supervisor called it a devastating and preventable tragedy.
Legal and Regulatory Fallout
The DA's office filed 30 charges, including seven counts of second-degree murder. The grand jury recommended new countywide positions and better training. The investigation involved dozens of agencies across the country.
The case raised questions about conflicts of interest and oversight failures. The property was owned by a sheriff's deputy and his wife, who also worked for the department.
