A huge manhunt is under way in Southern California for a former Los Angeles police officer, who authorities say has killed one officer and is a suspect in the killing of two other people.
Two officers in Riverside were shot early Thursday, one fatally, police there confirmed to CNN. CNN affiliate KTLA reported another officer was shot in Corona, California.
Christopher Jordan Dorner, 33, is also wanted in a double slaying Sunday in Irvine, California.
The California Highway Patrol issued an alert Thursday morning urging officers in several Southern California counties to be on the lookout for Dorner.
Dorner has made violent threats against other Los Angeles police officers, the Los Angeles Police Department said.
"I will bring unconventional and asymmetrical warfare to those in LAPD uniform whether on or off duty," Dorner allegedly wrote in a lengthy letter promising retribution against the departme nt, where he worked from 2005 until 2008. An LAPD source provided the document to CNN after the overnight shootings.
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