Christopher Dorner May Be Heading Towards to Mexico

Investigators think the ex-LAPD cop has had help evading capture

LOS ANGELES, Feb. 12 (UPI) -- Airport security workers were warned to be on the alert Monday in Southern California as the hunt continued for a former Los Angeles police officer.

Christopher Dorner, 33, who was trained as a marksman in the Navy, is suspected of killing three people. Documents filed Monday in federal court suggested investigators believe he had help eluding a massive dragnet, the Los Angeles Times reported.