The image, released by Pennsylvania law enforcement, appears to show murder suspect Peter Manfredonia walking along railroad tracks and carrying a large duffel bag.
Pennsylvania State Police Trooper Anthony Petroski said in a tweet that the 23-year-old, “armed and dangerous” suspect was last seen Sunday in East Stroudsburg.
Manfredonia, a Newtown native, started his killing spree Friday morning in an attack on a dirt road in Willington, Connecticut, that left a 62-year-old dead and another man seriously injured, state police said.
He is also suspected in the killing of a 23-year-old man in the town of Derby, Conn., on Sunday.
Police say Manfredonia stole firearms and a truck during a home invasion in Willington.