Monica Quan and Keith Lawrence Murders: Christopher Dorner, ex-cop, sought in slaying of basketball coach, fiance

(CBS/AP) LOS ANGELES - A fired Los Angeles police officer is suspected in the murder of a Cal State Fullerton basketball coach and her fiancé after it was revealed that the coach's father represented the suspect in front of a board when he lost his job, police said Wednesday night.

PICTURES: Calif. college hoops coach found dead

Authorities are now searching for former LAPD officer and U.S. Navy reservist Christopher Dorner in connection to the killings of 28-year-old Monica Quan and 27-year-old Keith Lawrence. The couple was found shot to death in their car at Sunday night, Irvine police Chief David L. Maggard said.

Police said Dorner, 33, implicated himself in the killings with a multi-page "manifesto" that he wrote that included threats against several people, but would give no further details on the document or its contents.

"We have strong cause to believe Dorner is armed and dangerous," Maggard said, adding that the LAPD and FBI are assisting in the case and anyone who sees the suspect should immediately call 911.

Dorner was with the department from 2002 until 2009, when he was fired for making false statements against another officer.

Quan's father, Randal Quan, was a former LAPD captain who became a lawyer in retirement. He represented Donner in front of the Board of Rights, a tribunal that ruled against Donner at the time of his dismissal, LAPD Capt. William Hayes told The Associated Press.

Randal Quan, who the LAPD said was the first Chinese-American captain in department history, retired in 2002. He later served as chief of police at Cal Poly Pomona and went on to practice law.

Police said Dorner's manifesto included threats against members of the LAPD.

"We are looking at the manifesto and will do an assessment in terms of the threat against those listed in it, and determine what level of protection each of them will need," Hayes said.

Police said he may be driving a blue, 2005 Nissan Titan pickup truck and his last known address was in La Palma, Calif., in northern Orange County near Fullerton.

According to court documents from October 2011, Dorner was fired from the LAPD after he made a complaint against his field training officer, Sgt. Teresa Evans. He said in the course of an arrest she kicked suspect Christopher Gettler, a schizophrenic with severe dementia.

Dorner was later fired for making false statements following an investigation.

Richard Gettler, the schizophrenic man's father, gave testimony that supported Dorner's claim. After his son was returned on July 28, 2007, Richard Gettler asked "if he had been in a fight because his face was puffy" and his son responded that he was kicked twice in the chest by a police officer, he testified.

Autopsies showed that Monica Quan and her fiancé were killed by multiple gunshot wounds in the parking structure at their condominium in Irvine, Orange County sheriff's spokesman Jim Amormino said earlier Wednesday.

Lawrence was a public safety officer at the University of Southern California. The killings brought mourning and disbelief at three college campuses, Fullerton, USC, and Concordia University, where the two met when they were both students and basketball players.

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