Dorner, 33, had several weapons including an assault rifle, said police Chief Charlie Beck, who urged him to surrender at a news conference held amid heightened security in an underground room at police headquarters.
“I never had the opportunity to have a family of my own, I'm terminating yours,” the manifesto states.
The chief said there had been a “night of extreme tragedy in the Los Angeles area” and that the department was taking measures to ensure the safety of officers.
In the manifesto, Dorner lists nine cities “where I resided from childhood to adulthood.” Enid is third from the bottom of the list: Cerritos, Calif.; Pico Rivera, Calif.; La Palma, Calif.; Thousand Oaks, Calif.; Cedar City, Utah; Pensacola, Fla.; Enid; Yorba Linda, Calif.; Las Vegas, Nev. It doesn't list when Dorner might have lived in Enid.
The search for Dorner, who was fired from the LAPD in 2008 for making false statements, began after he was linked to a weekend killing in which one of the victims was the daughter of a former police captain who had represented him during his disciplinary hearing.