A command post on Magnolia overpass over 15 freeway is set up in Corona, Calif. on Thursday, Feb. 7, 2013. Police are searching for a former Los Angeles police officer sought for two weekend killings , and who threatened to kill police. There were two separate overnight shootings about 60 miles east of Los Angeles in Riverside County that investigators believe involved former LA police officer Christopher Dorner, who's also the main suspect in the weekend killing of a couple whose bodies were found in Irvine. He was fired in 2008 for making false statements.