Happening Now
Ian David Long was a veteran in the Marine Corps and had previous encounters with local police.
Shortly before 7 a.m., deputies swarmed a neighborhood in the Newbury Park area, focusing on a particular home, which they roped off with crime tape.
Investigators were knocking on doors of surrounding residents to find out what they may know about Long.
One neighbor who knew Long said he was a veteran who suffered from PTSD.
She said, "I don't know what he was doing with a gun."
Others said Long lived at the home with his mother.