Mark David Zeichner, a 34-year-old man, was last seen on June 15, 1984, in Teaneck, New Jersey. At the time of his disappearance, Zeichner resided in an apartment in the New York City borough of Queens. He has not been seen or heard from since the day he vanished. The circumstances surrounding his disappearance are unsettling, as all of his personal belongings were discovered left behind in his apartment, including his clothing, toothbrush, wallet, and identification. This has led his mother to
...Read MoreLast Seen: Jun 15, 1984