Matthew Whisman was last seen at the end of March at an East Drumore Township home, according to troopers. Authorities said the circumstances of his disappearance are "suspicious in nature."
He was reported missing on Wednesday, July 3.
Whisman is described as a 5-foot-8, 145-pound white Hispanic man with brown hair.
Anyone who spots him or has information is asked to call PSP's Lancaster Station at 717-299-7650.
Click here to follow Daily Voice Steelton-Highspire and receive free news updates.