Ex-LAPD officer Christopher Dorner hunted over killings
Los Angeles area police have launched a huge manhunt for a sacked officer who is suspected of killing three people, including a former colleague.
Christopher Dorner, 33, is alleged to have gunned down a policeman and wounded two others on Thursday morning.
He is also wanted over the shooting deaths of a couple at the weekend.
Police are going door-to-door after finding the suspect's burned-out truck near a ski area at Big Bear Lake, 80 miles (128 km) east of Los Angeles.
Fire officials in Big Bear Lake told the Los Angeles Times that fresh tracks spotted in the snow were believed to be Mr Dorner's but that it was possible the truck was a diversion.
Nearby schools and other buildings were placed on a security lockdown as a precaution.
Mr Dorner is said to have implicated himself in a 14-page "manifesto" that made threats against several people, including Los Angeles police employees.
A former US Navy reservist, he was with the police department between 2005-08, but lost his job for making false statements.
He is suspected of:
- Shooting dead Monica Quan, 28 - the daughter of a former LAPD captain - and her fiance Keith Lawrence, 27, on Sunday night in their car at their home in Irvine, California
- Shooting at two police officers, grazing one, on Thursday morning in Corona, east of Los Angeles
- Ambushing two policemen in their patrol car in the town of Riverside a few hours later, killing one and wounding the other
Monica Quan's father represented Mr Dorner before a disciplinary tribunal that ruled against the suspect at the time of his dismissal.
According to court documents, Mr Dorner was fired in 2008 after making a complaint against his field training officer, saying she had kicked a suspect, a schizophrenic man with severe dementia, during an arrest.
Officials have assigned more than 40 protection details to potential targets of the fugitive, and electronic signs that usually list expected commute times urged motorists to call police if they saw Mr Dorner or his vehicle.
Los Angeles chief of police Charlie Beck told reporters: "Of course he knows what he's doing - we trained him. It is extremely worrisome and scary, especially to the police officers involved."
Sunday 3 Feb: Monica Quan (pictured), 28, and Keith Lawrence, 27, were found shot dead in Irvine. Ms Quan, was the daughter of a former Los Angeles police captain who had represented Mr Dorner in disciplinary hearings that resulted in his dismissal in 2008.
Wednesday 6 Feb: At around 22:30, a man matching the description of Mr Dorner (pictured) tried to steal a 47-foot boat from a San Diego marina, but the engine wouldn't start. An 81-year-old man on the boat was tied up but unhurt.
Thursday 7 Feb: At 01:30, two LAPD officers assigned to protect a person named in Mr Dorner's "manifesto" chased a vehicle they believed was Mr Dorner's in Corona. One officer was injured during a shootout, and the gunman fled.
Thursday 7 Feb: Shortly after the shootout in Corona, a gunman believed to be Mr Dorner ambushed two Riverside police officers who had stopped at a red light. One officer was killed and the other critically injured.
Thursday 7 Feb: At 05:15, LAPD officers guarding a target in Torrance identified in Mr Dorner's "manifesto" opened fire on a truck they mistakenly believed to be Mr Dorner's. Two women were wounded. Shortly afterwards, Torrance police shot at a second truck they mistook for Mr Dorner's. Nobody was hurt.
Big Bear Lake
Thursday 7 Feb: Authorities confirmed that a truck found near Bear Mountain ski area at Big Bear Lake belonged to Mr Dorner. Police announced that they were conducting a door-to-door search for Mr Dorner.
Mr Beck said that Mr Dorner has access to multiple weapons, including an assault rifle.
On Thursday morning, jittery Los Angeles police mistakenly fired on a vehicle they thought was similar to one used by Mr Dorner.
Two women were injured. One was in a stable condition with two gunshot wounds and the other had a minor gunshot wound.
Nevada police are also on alert, as the suspect owns a house nine miles (14.5km) from the Las Vegas Strip.
Police said earlier that an LAPD badge and identification belonging to Mr Dorner had been found by a citizen near San Diego's airport.
San Diego police said a man matching the suspect's description had tried to steal a boat from one of the city's marinas on Wednesday night.
When the boat would not start, that person tied up an 81-year-old man on board and fled.
He was last known to be living in La Palma, California.
Mr Dorner's rambling "manifesto" contains a number of allegations against former colleagues, together with embittered reflections on his childhood.
The essay warns of "unconventional and asymmetrical warfare to those in LAPD uniform whether on or off duty".
He also says "unfortunately, this is a necessary evil that I do not enjoy but must partake and complete for substantial change to occur within the LAPD and reclaim my name".