The police chief of nearby Riverside, Calif., also dismissed the writings after Dorner allegedly shot and killed a Riverside police officer in the early hours of Thursday morning. Dorner pulled up across from two Riverside officers stopped at a traffic light in their patrol car and used his rifle to shoot them, killing one and injuring the other, according to Chief Sergio Diaz of the Riverside Police Department.
"The manifesto speaks for itself in terms of a depraved and cowardly mind and heart, and the way he ambushed your public servants speaks for itself," Diaz said.
Dorner's letter ended with a violent warning to cops, however, and one that kept police heavily armed and on edge today despite their dismissal of the letter's content. He said he would use all of his tactical knowledge from his police and naval experiences to avoid being caught.
"You are aware that I have always been the top shot, highest score, an expert in rifle qualifications in every unit I've been in," he wrote. "I will utilize every bit of small arms training, demolition ordnance, and survival training I've been given."