Dorner was terminated on September 4, 2008, for filing a report concerning the conduct of fellow police officer, Teresa Evans (now a sergeant), for excessive force, which the police claim is false. Dorner accused Officer Evans of kicking suspect Christopher Gettler in the face while he was handcuffed and lying on the ground. An internal review board concluded that Dorner had falsified his report despite the corroborating statements of the kicking victim and of Gettler's father. Dorner cited his termination and sworn testimony that such excessive force did occur, in his online manifesto in early February 2013 as his reason for planning unspecified violence. No action was taken against Officer Evans, whom Dorner had accused of excessive force and who accused Dorner of misconduct during a patrol. In Dorner's manifesto, posted on his Facebook page, he demanded a public admission by the LAPD that his firing was in retaliation for reporting excessive force.
On February 9, 2013, the LAPD announced that it would reopen the disciplinary proceedings that led to Dorner's firing.