This undated photo released by the Los Angeles Police Department shows suspect Christopher Dorner, a former Los Angeles officer. Dorner, who was fired from the LAPD in 2008 for making false statements, is linked to a weekend killing in which one of the victims was the daughter of a former police captain who had represented him during the disciplinary hearing. Authorities believe Dorner opened fire early Thursday on police in cities east of Los Angeles, killing an officer and wounding another. Police issued a statewide "officer safety warning" and police were sent to protect people named in the posting that was believed to be written by Dorner. (AP Photo/Los Angeles Police Department)

San Bernardino County sheriff's deputies conduct door-to-door search in Big Bear, Calif, Thursday, Feb. 7, 2013. Thousands of police officers hunted Thursday for one of their own: a former Los Angeles officer angry over his firing and sought in a deadly shooting rampage after warning he would wage "warfare" on those who wronged him, authorities said. (AP Photo/Jae C. Hong)

Police tape surrounds a bullet-damaged Los Angeles Police vehicle on Thursday Feb. 7, 2013 in Corona, Calif. Former Los Angeles police officer Christopher Dorner is suspected if shooting at the two LAPD officers in the vehicle, who were sent to Corona to protect someone Dorner threatened in a rambling online manifesto. One officer's head was grazed by a bullet. Thousands of police officers throughout Southern California and Nevada hunted Thursday for Dorner, who was angry over his firing and began a deadly shooting rampage that he warned in an online posting would target those on the force who wronged him. (AP Photo/Nick Ut)

FBI agents gather outside a Las Vegas home owned by former Los Angeles police officer Christopher Dorner while collecting evidence, Thursday, Feb. 7, 2013. Thousands of police officers hunted Thursday for one of their own: a former Los Angeles officer angry over his firing and sought in a deadly shooting rampage after warning he would wage "warfare" on those who wronged him, authorities said. (AP Photo/Julie Jacobson)

San Bernardino County sheriff's deputies search a home during a manhunt for former Los Angeles officer Christopher Dorner in Big Bear, Calif, Thursday, Feb. 7, 2013. The ex-Los Angeles police officer who authorities say went on a killing spree to punish those he blamed for his firing killed three people, set off a manhunt that stretched across three states and into Mexico, and stirred fear throughout the region. (AP Photo/Jae C. Hong)

A SWAT team enters a home in Big Bear, Calif. in search of shooting suspect Christopher Dorner, Thursday, Feb. 7, 2013. Thousands of police officers hunted Thursday for one of their own: a former Los Angeles officer angry over his firing and sought in a deadly shooting rampage after warning he would wage "warfare" on those who wronged him, authorities said. (AP Photo/Los Angeles Times, Robert Gauthier) NO FORNS; NO SALES; MAGS OUT; ORANGE COUNTY REGISTER OUT; LOS ANGELES DAILY NEWS OUT; VENTURA COUNTY STAR OUT; INLAND VALLEY DAILY BULLETIN OUT; MANDATORY CREDIT, TV OUT

San Bernardino County sheriff's deputies search a car in Big Bear, Calif, Thursday, Feb. 7, 2013. An ex-Los Angeles police officer who authorities say went on a killing spree to punish those he blamed for his firing killed three people, set off a manhunt that stretched across three states and into Mexico, and stirred fear throughout the region. (AP Photo/Jae C. Hong)

San Bernardino County sheriff's deputies conduct door-to-door search in Big Bear, Calif, Thursday, Feb. 7, 2013. Thousands of police officers hunted Thursday for one of their own: a former Los Angeles officer angry over his firing and sought in a deadly shooting rampage after warning he would wage "warfare" on those who wronged him, authorities said. (AP Photo/Jae C. Hong)

Police tape surrounds a bullet-damaged Los Angeles Police vehicle on Thursday Feb. 7, 2013 in Corona, Calif. Former Los Angeles police officer Christopher Dorner is suspected if shooting at the two LAPD officers in the vehicle, who were sent to Corona to protect someone Dorner threatened in a rambling online manifesto. One officer's head was grazed by a bullet. Thousands of police officers throughout Southern California and Nevada hunted Thursday for Dorner, who was angry over his firing and began a deadly shooting rampage that he warned in an online posting would target those on the force who wronged him. (AP Photo/Nick Ut)