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

State and local investigators were still processing a storage facility behind the Shores apartment complex in Marina del Rey ...

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

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

Three people have been killed in an explosion at a police training facility in Los Angeles. The incident happened at ...

( NewsNation) — The local bomb squad has arrived on the scene of an explosion in Los Angeles that killed at least three ...

Federal agents are investigating, but authorities describe it as "an isolated incident" with no further threat to the public.