Charges Filed After Esparto Fireworks Explosion
A former sheriff’s lieutenant from Northern California and a fireworks company owner have been charged with murder following a deadly explosion last year at an illegal fireworks factory in Yolo County, which resulted in seven fatalities.
On April 3, Yolo County District Attorney Jeff Reisig announced that a grand jury has indicted a total of eight individuals, five of whom face second-degree murder charges, as part of a broad investigation linked to the major explosion in the Esparto area last July.
The list of those arrested includes Yolo County Sheriff’s Lt. Sam Machado, his wife Tammy Machado, and Kenneth Chee, who is the founder and CEO of Devastating Pyrotechnics, a Bay Area illegal fireworks enterprise.
Interestingly, Chee was apprehended in Florida while visiting Disney World with his family, according to reports. Authorities have stated that Machado, Chee, and three others face seven counts of murder, one for each of the victims.
Jack Lee, the operations manager at the fireworks company, was also arrested in relation to the incident, which obliterated the facility and necessitated the evacuation of surrounding areas.
According to the DA’s office, the arrests made across the country are the culmination of a year-long investigation that spanned multiple states.
The indictment outlines a 10-year scheme to transform the property owned by Machado into a hub for an illegal operation that imported and sold explosives on the black market. Yolo County Deputy DA Clara Naviti remarked that “This is not just about fireworks,” emphasizing that the devices in question are more explosive than what is legally permitted. She noted that these are designed for civilian sale but exceed legal limits.
Naviti also indicated that Machado purportedly utilized his role as a lieutenant to shield and facilitate the conspiracy. During this decade-long illegal operation, officials noted, more than 11 million pounds of explosives were imported, and around 1 million pounds were stored at the factory at the time of the explosion.
Last month, Machado resigned from his position in the sheriff’s department. Reports suggest he remained in custody as of Friday. Arrangements are expected for the five defendants already held in Yolo County Jail.
In closing remarks, Reisig extended heartfelt sentiments to the families affected by the tragedy, stating, “Our hearts are with them… We are committed to pursuing this to its end.” The investigation is ongoing, and officials indicate that more individuals may be implicated.





