Authorities are looking into whether grenades recovered from a Santa Monica apartment complex caused an explosion last week at a Los Angeles County Sheriff’s Department training facility that killed three members of its arson and explosives unit.

Authorities investigating the deadly blast at a Los Angeles County Sheriff's Department training facility are looking into connections to some explosives collected in Santa Monica.

A veteran investigator, a respected mentor and a skilled technician — the three arson investigators killed in an explosion at the Biscailuz Center in East LA were remembered as the “best of our