Christopher Dorner. (Photo: Irvine Police Department Press)
William M. Welch, USA TODAY
A massive manhunt was underway in Southern California Friday after a former Los Angeles cop went on a self-confessed revenge killing spree that left a policeman and two others dead and forced the Los Angeles Police Department to dispatch officers to guard their own.
Police said Christopher Dorner, a former LAPD officer with military training, began the wave of violence as retribution after being fired in 2008 for making false statements.
Local law enforcement officers are scouring the Big Bear mountain ski area for Dorner after police found his burned-out pickup truck and tracks leading away from the vehicle off a forestry road in a remote area of the San Bernardino mountains east of Los Angeles.
MORE: Key events in hunt for suspected killer
Police chiefs in Irvine and Los Angeles said Dorner wrote and posted online a profanity-laced 11-page note addressed to "America." In it, he laid out his grievances against the LAPD and various officers he claims wronged him, ruined his law enforcement career and ultimately destroyed his reputation. He says he'll stop the killing when the LAPD publicly proclaims his innocence and restores his reputation.
"I will utilize every bit of small arms training, demolition, ordinance and survival training I've been given," the manifesto read. "You have misjudged a sleeping giant."
Schools near Big Bear mountain were put on lockdown, and the ski resort halted operations. San Bernardino County Sheriff John McMahon said 125 officers were going door to door and attempting to track the suspect, and that a SWAT team was providing added security to those in the community.
"We're doing everything we can to search the area and try to find him,'' McMahon said
Law enforcement officials are looking for more clues in a package CNN's Anderson Cooper received from Dorner. CNN spokeswoman Shimrit Sheetrit told the Associated Press on Thursday the parcel contained a note, a DVD and a bullet hole-riddled memento. The note read, in part, "I never lied."
The package arrived Feb. 1, days before the first two killings Dorner is accused of.
Los Angeles Police Chief Charlie Beck called on Dorner to turn himself in: "This has gone far enough. Nobody else needs to die."
He said Dorner "has multiple weapons at his disposal, including assault rifles."
Beck said Los Angeles police have launched more than 40 security details to protect law enforcement personnel and others they believe are Dorner's targets, based on the Internet posting.
Across Southern California, digital traffic signs had carried alerts urging motorists to report any sighting of Dorner.
"I don't think there's anybody in law enforcement who isn't looking for him, along with about half the commuters in Southern California,'' said San Diego police Detective Gary Hassen.
Beck said Dorner was threatening law enforcement officers specifically and in general.
"LAPD is a specific target, but all law enforcement is targeted,'' Beck said, because Dorner had "a vendetta against all Southern California law enforcement.''
Police in San Diego early Thursday recovered a badge and ID bearing Dorner's photograph, Hassen said. The items were found by someone near the San Diego airport, he said.
Hassen said a man matching Dorner's description tried to steal a boat from a San Diego marina Wednesday night but gave up after he was unable to get the engine started and the boat unmoored. "We're waiting for forensic evidence to see if it was Dorner,'' Hassen said.
Police across the region were responding to reported sightings, and some proved to be mistaken. Beck attributed a pair of shootings by police officers in Torrance, south of Los Angeles, to mistaken identity. In one of the instances, officers fired on two women who were in a blue pickup delivering newspapers. One was hospitalized, the other treated for minor injuries.
Riverside Police Chief Sergio Diaz said his two officers were stopped at a traffic light when they were hit with several gunshots fired from a rifle by someone in a truck that pulled up next to them. A 34-year-old officer with 11 years on the force was killed. Another officer, 27, is expected to recover from his injuries, Diaz said.
Irvine Police Chief David Maggard named Dorner Wednesday night as the suspect in the slayings of Monica Quan, 28, an assistant basketball coach at California State University-Fullerton, and her fiance, Keith Lawrence, a University of Southern California campus security officer.
The couple was found dead of multiple gunshot wounds in their car outside their Irvine condominium Sunday night.
Quan was the daughter of Randy Quan, a retired LAPD captain who represented Dorner in the review process that led to his dismissal from the force for making false statements.
Randy Quan was the first Chinese-American to attain the rank of captain on the LAPD force, the department has said. He later served as chief of police at Cal Poly-Pomona, part of the California State University system.
Maggard said Dorner implicated himself in the killings in the manifesto.
"When the truth comes out, the killing stops," the letter reads. "The attacks will stop when the department states the truth about my innocence. PUBLICLY!!! I will not accept any type of currency/goods in exchange for the attacks to stop, no do I want it. I want my name back, period. There is no negotiation."
The letter accuses the LAPD of corruption, racism and covering up for and promoting officers who steal and use excessive force. He identifies groups, including white, Asian, lesbian, black and Hispanic officers, who have acted in what he calls immoral ways as "high-value targets." The letter cites as one example of "high-value targets" black officers who belittle white officers under their command, perpetuating the cycle of racism" in the LAPD.
"I am here to change and make policy," the letter reads. "The culture of LAPD versus the community and honest/good officers needs to and will change. I am here to correct and calibrate your morale compasses to true north."
Contributing: Donna Leinwand Leger in Washington; Alia E. Dastagir in Tysons; the Associated Press