A week after former LAPD cop Christopher Dorner is believed to have begun a revenge-driven killing spree that has so far netted three victims, authorities are expected to announce a one million dollar reward for information leading to his arrest.

Dorner, a former LAPD officer and Navy veteran, has been the subject of a wide-ranging manhunt, stretching into the mountains east of Los Angeles, since February 3rd when he allegedly gunned down a couple in an Irvine parking garage. The woman, a college basketball coach, was the daughter of a retired LAPD Captain named by Dorner in an online manifesto posted online several days earlier. In the wide-ranging piece, Dorner lays out his plans to seek revenge against the LAPD officers he blames for ending his careers in both the Navy and the LAPD.

After Dorner was publicly identified as the suspect in the first murder, on Thursday he allegedly shot two Riverside PD officers, killing one and seriously injuring another. Since then, a multi-agency task force has been searching for Dorner across Southern California, including the San Bernadino mountain east of Los Angeles where Dorner’s burned-out truck was discovered late last week. Newly released surveillance video shows Dorner dumping ammo and military equipment in a dumpster in National City, south of San Diego on Monday, although search efforts remain focused on the area surring Big Bear Lake near where the truck was discovered.

In his manifesto, Dorner references his marksman training in the Navy in vowing to exact revenge on the LAPD. “Hopefully you analyst have done your homework. You are aware that I have always been the top shot, highest score, an expert in rifle qualifications in every unit I’ve been in. I will utilize every bit of small arms training, demolition, ordnance, and survival training I’ve been given, ” says Dorner. “I am off the grid…I assure you that the casualty rate will be high.”

[Source: SFgate/LA Times/LAist]