David Matthews was 44 when he was last seen in Manhattan on December 21, 2000, at about 5:30 p.m. near Morningside Park. He is described as a white male, brown hair and brown eyes, about 5 feet 3 inches and 134 pounds, possibly with a mustache, beard, or goatee. At the time he disappeared he was wearing a medium blue bubble coat, a light blue t-shirt, and jeans.

David is known to be mentally disabled, a detail investigators and his family have stressed as increasing concern for his welfare. The New York City Police Department Missing Persons Squad is handling the case, which remains open despite the passage of time. Little else has been made public about the circumstances of his disappearance.

Does anyone who was in the Morningside Park area on December 21, 2000, or who knew David then have information that could help explain what happened?