unified on that. and it might not happen. we are watching developments. >>> let's gets back to our top story. a shooter on the loose in los angeles. the suspect a former cop is identified as christopher dorner. he was fired from the police force five years ago. and he might now be seeking revenge. dorner accused of shooting three los angeles police officers early this morning. one of them fatally, plus he's the prime suspect in a double killing over the weekend. we are covering all angles of the story. paul vercammen joins us, law enforcement analyst mike brooks is with me in atlanta. and we will hear about the suspect's military background from barbara starr at the pentagon. paul, to you first. bring us up to speed on the hunts for this ex-cop, his former colleagues describing him as armed and extremely dangerous. >> reporter: that's right, michael. and in fact in his manifesto, he says i have a barrett 50, meaning a semiautomatic sniper rifle. behind me you can see officers are on high alert. not far from here in riverside, california early this morning, dorner is suspected of fatally killing one officer and critically injuring