Police swarmed a Marin City neighborhood armed with search warrants on Thursday morning. Reports say a number of people were detained in connection to the Halloween night shooting at an Air BnB rental in Orinda. Five people, ages 19-to-29, were killed.
The Contra Costa County sheriff's SWAT team was apart of the Thursday raid that was captured on cell phone video. Crime scene investigators and Marin County sheriff's deputies also participated.
KTVU reports the Orinda shooting appeared to be between rival groups from San Francisco and Marin City.