Authorities warned Tuesday that the man believed to be behind the ambush of two Pennsylvania State Police troopers is `` armed and dangerous '' and may not be finished with targeting law enforcement officials . Eric Matthew Frein is wanted for murder in the first degree in the killing of one trooper and the wounding of another over the weekend , Pennsylvania State Police Commissioner Frank Noonan told reporters during a news conference . `` He has made statements about wanting to kill law enforcement officers and also to commit mass acts of murder , '' Noonan said . `` 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 . '' An affidavit of probable cause paints a chaotic , bloody scene during the shooting Friday night at the state police barracks in Blooming Grove in northeast Pennsylvania . 'Get him inside ' The attack began at about 11:50 p.m. when Cpl . Bryon K. Dickson , who had just finished his shift , left the barracks through the building 's front doors . He was shot as he walked toward his vehicle , according to the affidavit . Another police officer walked by the front door and saw Dickson lying on the ground . The officer , a woman , asked him what happened , and Dickson told her had been shot and needed help , the affidavit said . As he was telling the officer what happened , another shot was fired , it said . Dickson , according to the documents , asked the officer to `` get him inside . '' Then as another officer , Trooper Alex Douglass , tried to help , he was shot , the documents said . The officers in the building resorted to using a patrol car to drive between the shooter and the building in an effort to rescue Dickson and get him to a hospital , according to the affidavit . Dickson was declared dead at an area hospital . The cause of death was multiple gunshot wounds , authorities said . Shell casings found . Frein , 31 , is a survivalist by hobby who lives in Monroe County , authorities said . Noonan said anyone who might know something about Frein or spot him should first contact authorities . A person walking their dog saw Frein 's car submerged in a body of water about two miles from Blooming Grove , the police barracks where the shootings happened Friday . The person dialed 911 , and investigators found shell casings inside the vehicle that matched casings found at the scene of the shooting , authorities said . Investigators also discovered Frein 's Social Security card along with camouflage face paint , a flashlight , a hooded sweatshirt and military gear inside the car . Police searched Frein 's parents ' home and found spent shell casings matching the kind used in the shooting , authorities said . Pennsylvania authorities are working with the FBI and others throughout the country to sift through tips that have come in the case , officials said . Friends and relatives who were interviewed by investigators said that Frein had talked about his disdain for law enforcement , according to authorities . `` This was nothing he kept quiet , '' said Noonan , who said he wished those people had spoken up before the shooting of the troopers . With the hunt for the suspected gunman still under way , one school district in the vicinity of the shooting announced it was canceling classes on Wednesday . The administration of the Pocono Mountain School District said the decision was made `` due to safety concerns of our students at bus stops with an armed and dangerous gunman on the loose . '' Reward offered . Earlier this week , authorities said they were offering a $ 75,000 reward for information leading to the suspect or suspects . As of Monday , the trooper who was wounded but survived the shooting had not been interviewed . Douglass was conscious and speaking for the first time Monday since undergoing surgery after the shooting , police said . `` First and foremost is our concern for his health and recovery . So we 're letting the doctors do what they need to do , and at an appropriate time that will occur . We expect that to happen in the very near future , '' Pennsylvania State Police Lt. Col. George Bivens said Monday . Cpl . Bryon K. Dickson was killed in the attack . 2 officers from 'Alaska State Troopers ' killed in confrontation .
With manhunt under way , schools in danger of shooting close for the day . An arrest warrant has been issued for James Matthew Frein , 31 . He is a survivalist with anti - police leanings , law enforcement officials say . He is at large and likely armed and dangerous , police report says .