David Thies was 19 when he vanished from his family’s Manhattan apartment building on the afternoon of December 13, 1982. He stepped into the hallway to smoke a cigarette and never returned; earlier that day he had gone out to buy a gift and planned to help with his father’s birthday dinner that evening.

At the time he was described as a Caucasian male, dark brown hair, blue/gray eyes, 5 feet 11 inches, about 140 pounds, with a mustache and beard, a pierced left ear and a scar on the right side of his nose. He was last seen wearing a brown jacket, blue shirt, white pants, green-striped socks and white sneakers.

In the weeks before he disappeared his mother, Karen DiGia, reported he seemed depressed and obsessed with television news; psychiatric social workers noted suicidal tendencies, but no evidence was ever found to support that he took his own life. David’s parents offered a $25,000 reward that produced more than 40 tips, including unverified sightings in California, but none were substantiated and he was never located.

Does anyone have information about David’s whereabouts or remember seeing him around Manhattan in December 1982?