His fellow Officer James Veenstra was shot and went into surgery last night and is expected to survive.
It all began Thursday night at a house in the San Fernando Valley.
Police say a suspect called them and claimed he'd killed three of his relatives.
When a swat team arrived at the home...they found three men shot inside.
Two were dead and the third died after he was pulled from the house.
Officers tear-gassed the house and that's when a woman ran out and was rescued.
The surrounded gunman apparently set the house on fire and later died in an exchange of gunfire with officers.