Christopher Jordan Dorner ( September 11 , 1979February 12 , 2013 ) was a Los Angeles police officer who , beginning Process_start on February 3 , 2013 , committed Committing_crime a series of shootings Use_firearm in Orange , Los Angeles , and Riverside County , California .

Dorner killed Killing four people and wounded Bodily_harm three others .

The rampage ended Process_end on February 12 , 2013 , when Dorner died Death during a standoff Hostile_encounter with San Bernardino County Sheriff 's Deputies after a shootout Use_firearm at a cabin in the San Bernardino Mountains .

A manifesto reportedly posted Reporting by Dorner on Facebook declared Expressing_publicly `` unconventional and asymmetric warfare Hostile_encounter '' upon the Los Angeles Police Department ( LAPD ) , their families , and their associates Collaboration , unless the LAPD admitted publicly he was fired in retaliation Revenge for reporting Reporting excessive force .

In two separate incidents Catastrophe during the manhunt , police shot at three civilians unrelated to Dorner , mistaking their pickup trucks for the vehicle being driven Motion by Dorner .

In two separate incidents Catastrophe during the manhunt , police shot at three civilians unrelated to Dorner , mistaking their pickup trucks for the vehicle being driven Motion by Dorner .