A military-style grenade caused last week’s accidental explosion that killed three Los Angeles sheriff’s deputies at a training facility, the LA County Sheriff’s Department said on Monday.

Three members of the arson and explosives unit of the Los Angeles County Sheriff’s Department have been killed in a blast at ...

The investigation into the deaths of three L.A. County deputies, all killed by an explosion of military-style grenades ...

Authorities are looking into whether grenades recovered from a Santa Monica apartment complex caused an explosion last week ...

The device that exploded last week at a Los Angeles County Sheriff's Department facility and killed three detectives was a grenade, ABC News sources confirmed on Monday.Agents and detectives had ...

The investigation into an explosion that killed three Los Angeles County sheriff’s deputies in East Los Angeles turned to Marina del Rey Monday, where investigators served a search warrant at a boat ...

Fox News contributor Nicole Parker and former Los Angeles County sheriff Alex Villanueva join 'Fox News @ Night' to discuss ...