(CNN) — Investigators believe there’s been another public sighting of Eric Matthew Frein, subject of a massive manhunt on suspicion of killing a Pennsylvania state trooper in a September ambush, a law enforcement official said Saturday.
A woman in eastern Pennsylvania told police she saw a man dressed in all black on Friday night, with his face covered in mud, armed with a long rifle with a scope, the official said on condition of anonymity.
Authorities believe the man was Frein, and are now searching the area of the sighting in Paradise Township, the official said.
Frein, 31, is suspected in the September 12 ambush shooting that left Cpl. Bryon Dickson dead and Trooper Alex T. Douglass wounded outside the Pennsylvania State Police barracks inBlooming Grove.
A massive search for Frein has been carried out since, at times involving as many as 1,000 officers. Despite recent sightings and other leads, he has eluded authorities. The manhunt has cost several million dollars, State Police Lt. Col. George Bivens said earlier this month.
Frein has been described as a survivalist and military re-enactment enthusiast with a hatred for law enforcement, authorities say.