A record $1 million reward was posted on yesterday for information leading to the former Los Angeles cop Christopher Dorner, who's suspected of targeting police officers and their families in three murders believed to have been committed in retaliation for his 2008 firing. LAPD Chief Charlie Beck said the reward, raised in part from private donations, police unions and businesses, is the biggest amount ever offered in Southern California in a criminal investigation. The reward was posted as the search for the 33-year-old Dorner continues, with the trail in the San Bernardino Mountains near Big Bear Lake ski resort, where Dorner's burned-out truck was found on Thursday, having gone cold. Beck also announced on Saturday that the inquiry that led to Dorner's firing will be re-opened. Dorner claimed in his online manifesto that he was fired after he accused a superior officer of kicking a mentally ill person twice in the chest and once in the face, but an inquiry found he lied, which he insisted he hadn't. Beck said the inquiry was being reopened not to reward Dorner, but to, quote, "reassure the public that their police department is transparent and fair."