Santa Monica's police chief says the gunman who killed four people in a chaotic rampage planned the attack and had 1,300 rounds of ammunition.

 

Law enforcement personal invstigate the shooting scene at Santa Monica College (Kevork Djansezian/Getty Images)

Chief Jacqueline Seabrooks says the gunman who was killed by police had a rifle, a duffel bag full of ammunition magazines and extra weaponry.

She says the suspect had a run-in with police seven years ago, but she couldn't comment further because he was a juvenile at the time.

She spoke near a display of weapons and ammo recovered from Santa Monica College where the killings ended when police fatally shot the gunman.

Seabrooks says police are probing the gunman's connection to a house where the killings began a mile from campus. She would not identify the killer but said he would have turned 24 on Saturday.

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