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The reward, raised from private donations, police unions, businesses and city and county governments, marks the largest sum ever offered in Southern California in a criminal investigation.
Some 80 miles to the east, SWAT teams continued to scour snow-covered mountains near where the 33-year-old fugitive's charred pickup truck was discovered Thursday.
Dorner is accused of
In a series of ambush shootings near Los Angeles on Thursday he is accused of killing one police officer and injuring two others.
Authorities say Dorner has vowed revenge against several former LAPD colleagues whom he blames for ending his career.
Actor Charlie Sheen has recorded a personal video message to Dorner, urging him to call the star so they can "figure out" an end to his manhunt.