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

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

It was not immediately clear what caused the blast at the Los Angeles County Sheriff’s Department’s Biscailuz Training Academy center. No one else was injured, officials said.