Undated photo of Christopher Dorner
02/11/2013 at 09:00 AM EST
Authorities in Los Angeles upped the ante Sunday on a bounty for Christopher Dorner, the fugitive former Los Angeles police officer who remains at large
after killing another officer and targeting police and their families over his 2008 firing from the force.
Police announced a record $1 million reward for information leading to the capture of Dorner, 33, who has eluded capture
for five days and whose angry 15,000-word "manifesto" threatened the lives of at least 50 former colleagues and their relatives.
The record bounty, described by police as the largest for a criminal investigation in Southern California, was posted Sunday and comes from donations from police unions, businesses and private investors who want Dorner captured and off the streets.
Security was tightened at the Staples Center in downtown for Sunday's 55th annual Grammy Awards
, as police continued the largest manhunt ever for the Los Angeles area. The search focused on the San Bernandino mountains where Dorner's burned out truck was found abandoned near Big Bear Lake, as police offered security to lawe enforcement families mentioned in Dorner's rambling writings.
Dorner, a former U.S. Navy reservist, engaged in a shooting with two officers on Thursday, grazing one, before ambushing two other police while they were sitting in their patrol car at a stoplight. One was killed and the other was seriously wounded. The revenge killings came after Dorner had posted rants on his Facebook page last week over what he claimed was his wrongful firing from the LAPD.