Another paranoid wingnut acting out the kind of craziness probably fed into his head by the likes of Glenn Beck and extremist websites, and one cop is now dead as a result:

Pennsylvania authorities have identified a 31-year-old man they described as a survivalist with a strong desire to kill police officers as the man who allegedly shot and killed a state trooper in an ambush outside a police barracks Friday night.

Eric Matthew Frein, a Pennsylvania resident, allegedly used a .308-caliber rifle to gun down Cpl. Bryon Dickson and seriously wound a second officer -- Trooper Alex T. Douglass -- around 10:50 p.m. Friday, State Police Commissioner Frank Noonan told reporters Tuesday afternoon.

Noonan has described the attack as an ambush and said Dickson and Douglass had little chance to defend themselves. Dickson died a short time later, while Douglass was hospitalized in stable but critical condition.

While the shooter's motives remain unclear, Noonan said Frein had "made statements about wanting to kill law enforcement officers and also wanting to commit mass acts of murders.”

“He has expressed anti-government leanings in the past, especially toward law enforcement," Noonan said, adding that many of his rants appeared on social media.

Police searched Frein's home in Candensis early Tuesday, and his parents told investigatiors that an AK-47 assault rifle and a .308-caliber rifle with a scope were missing from the residence, according to a criminal complaint filed with the Pike County district attorney's office.

Frein was trained to shoot by his father, a retired U.S. Army major. He had been a member of his high school rifle team, and had become so adept with long guns that he "doesn't miss," his father told police, according to the complaint.