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

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

A grenade is missing from the scene of an explosion that killed 3 LA deputies, sheriff says.

F or the third-straight day, investigations into last week's deadly explosion at a Los Angeles County Sheriff's Department ...