Cal Fire's Office of the State Fire Marshal is leading the investigation, assisting the Esparto Fire Department, which is still in charge of the entire incident at large.
Tuesday, Berlant confirmed that as part of the investigation, a search warrant was executed at a San Francisco home, the business address listed for Devastating Pyrotechnics owner and CEO Kenny Chee.
He would not confirm what they were looking for but did clarify that at this time, no one is charged with a crime connected to the deadly explosion.
"Kenny Chee is innocent of any wrongdoing in connection with the Yolo Fire. While the investigation is ongoing we will have no further public comment."
One week later, Berlant says the investigation has gone from an active recovery phase searching for the victims now to the bulk of the investigation on the ground. He says there was a bit of delay because, for days following the initial explosion, the site was still too dangerous for investigators to enter.
Tuesday night, family members gathered near the scene to hold a vigil remembering the victims, pushing for answers in the case and clarity on what exactly happened to their loved ones.
This investigation is the first time Cal Fire has ever visited the property, Berlant says. Enforcement of fire codes fall to local jurisdictions.
Yolo County officials say Machado is not involved in the investigation and is still employed with the department. Additionally, an Esparto Fire Department volunteer firefighter, Craig Cutright, owned another company, BlackStar Fireworks, that had the same address listed as Devastating Pyrotechnics, the site of the explosion.
Berlant said that though Cal Fire is building their case with urgency, that they simply cannot divulge most details in the ongoing investigation.
He said no such state law exists.
Many Esparto neighbors voiced their frustration to CBS13 that they had no idea this facility, which as it turns out was not permitted at the local level to be there, was right in their backyard.
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