Police searching for escaped inmate, say he's suspected in killing near Pennsylvania jail

This undated photo provided by the Armstrong County Jail shows Robert Crissman. Armstrong County officials say Crissman ran from jail Thursday morning, July 30, 2015, while delivering meals to other inmates. Authorities say Crissman is suspected of killing a woman in her Kittanning, Pa., home and then taking her 1999 Chevrolet Silverado pickup truck after escaping. (Armstrong County Jail via AP) (The Associated Press)

Police in western Pennsylvania are searching for an escaped inmate suspected of killing a woman after walking away from a work-release program.

Armstrong County officials say 38-year-old Robert Crissman ran from the jail Thursday morning while delivering meals to other inmates.

Sheriff William Rupert says Crissman walked outside to get the meals from a truck and took off.

The body of 55-year-old Tammy Long was later discovered at a nearby home. District Attorney Scott Andreassi says authorities determined Crissman had visited Long's home but didn't say how she was killed.

Officials say Crissman was in jail for violating probation on a drug charge and was trusted by staff. There were no violent crimes on his record.

Crissman was last seen driving a maroon 1999 Chevrolet Silverado pickup truck. It has a union sticker and Pennsylvania plate.