Police in Pennsylvania are combing the Poconos for a rage-affected, cop-hating 31-year-old prepper and shooting enthusiast who "doesn't miss" after he reportedly ambushed two state troopers at their barracks, killing one and injuring another.

Eric Matthew Frein now faces first-degree murder and a host of other charges in connection with the attack that killed Cpl. Bryon Dickinson and injured Trooper Alex Douglass last Friday, ABC News reports:

He's a skilled shooter who "doesn't miss," his father, a retired U.S. Army Major, told police. The father also told police that he was missing two weapons, a .308 rifle with a scope and an AK-47, according to court documents released today...

Police who searched his home found a copy of a book entitled Sniper Training and Employment, according to the court documents.

The elder Frein served in the Army for 28 years and says he mentored Eric as the young man became a competitive rifle target-shooter in high school. Eric Frein is believed to have fled on foot with his weaponry after police found a Jeep owned by his parents sunk in a pond near the murder scene. The Jeep contained "camouflage face paint, a black hooded sweatshirt, empty rifle cases and military gear."

Pennsylvania Police Commissioner Frank Noonan revealed Frein's identity as the suspected killer in a midday press conference. Frein had recently mentioned a desire "to kill law enforcement officers and also to commit mass acts of murder," Noonan said. "What his reasons are, we don't know. But he has very strong feelings about law enforcement and seems to be very angry with a lot of things that go on in our society."

[Screenshot via]