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

A veteran investigator, a respected mentor and a skilled technician — the three arson investigators killed in an explosion at ...

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

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

This development follows a continuing investigation into an apartment building in Santa Monica, where several devices ...

The explosives that detonated and killed three L.A. County Sheriff’s Department deputies may have been found in a storage unit at an apartment complex in Santa Monica, a law enforcement source ...

Serving the search warrant were sheriff’s homicide investigators, the Bureau of Alcohol, Tobacco, Firearms and Explosives, ...

The device that exploded last week at a LASD facility and killed three detectives was a grenade, ABC News sources confirmed.

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.

Law enforcement sources told NBC Los Angeles last week that the three deputies were thrown a significant distance from the ...