The gunman who is believed to have killed four people in a Santa Monica shooting rampage before being killed by police was identified by multiple media outlets Sunday as John Zawahri, whose victims included his father and brother.
The Los Angeles Times reported that Zawahri had been angered by his parents' divorce and had some mental health issues in his past. The Times cited several sources in Los Angeles and in Washington, D.C., who declined to be identified because the investigation was ongoing.
The Times said detectives believe the shooting was sparked by a family dispute. The suspect's past mental health issues occurred when he was a juvenile and are not available to the public, the Times said.
The Associated Press reported that investigators were looking at family connections to find a motive because the killer's father and brother were the first victims. AP cited an official briefed on the probe who requested anonymity because he wasn't authorized to speak publicly on the case.
CNN reported that John Zawahri's attack began when he killed his father, Samir "Sam" Zawahri, 55, and brother, Chris Zawahri, 25, in a Santa Monica house before carjacking a woman and firing at a public bus on Friday.