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 ...

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.

Investigators say they are following leads to determine the origin of the grenades that were discovered inside a Santa Monica ...

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 ...

The department said it appears the detectives were moving explosives on a cart in the training center's parking lot when the ...

Officers spent hours searching a Santa Monica apartment building where the device that exploded and killed three deputies may ...

Three Los Angeles County sheriff’s deputies assigned to the arson explosives detail were killed in an explosion at a law ...

Authorities are ramping up their investigation into an explosion at a training facility that killed three veteran Los Angeles County sheriff's deputies. NBC News’ Ryan Chandler has the latest.

Three veteran Los Angeles County Sheriff’s Department members assigned to the agency’s arson and explosives detail were ...