Although grand jury actions are confidential until indictments are returned, sources say it is interviewing key officials related to the blast.

Two years before a deadly explosion killed seven workers at a fireworks warehouse in Esparto owned by Devastating Pyrotechnics, another series of explosions leveled part of a storage facility in San ...

Residents Against Illegal Fireworks has asked Gov. Gavin Newsom to investigate Cal Fire's handling of the deadly Esparto ...

Northern Californian authorities arrested a man last week in a sweeping investigation relating to the deadly fireworks explosion that killed seven over the summer. Ronald Botelho III was arrested on ...

ONTARIO, Calif. — An explosion at a house in Ontario, California, which officials say was set off by fireworks, shook a neighborhood Tuesday, prompting a massive response from firefighters and police ...

Did the California State Fire Marshal have information that could have led to inspections of the Esparto fireworks facility two years before July's massive explosion? KCRA 3 Investigates has obtained ...

Company lawyer sought return of 3,600 seized fireworks, citing Yolo County sheriff ties. Email shows state fireworks office knew some seized explosives belonged to the company. Company sought to ...

ONTARIO, Calif. (AP) — Authorities are seeking to identify the bodies of two people killed in a huge fireworks explosion in a Southern California neighborhood. Authorities said Wednesday that they ...

ONTARIO, Calif. -- Two people were killed when a massive explosion involving fireworks ignited multiple structure fires in a neighborhood in Ontario, California, on Tuesday afternoon, prompting ...