206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case? Let us know!
Mark David Zeichner, a 34-year-old man, was last seen on June 15, 1984, in his Queens, New York, apartment. At the time of his disappearance, Zeichner was living alone, and his belongings, including his clothing and personal items, were left untouched in his home. He also left behind his wallet and identification, raising concerns about the abrupt nature of his disappearance. Zeichner, who had been diagnosed with bipolar disorder and schizophrenia, was known to resist taking his medication and h ...Read More
Last Seen: Jun 15, 1984
Victim Details

Sep 10, 2010

Apr 18, 2024

Mark

Zeichner

74

34

71 inches

73 inches

170 lbs

190 lbs

White / Caucasian

Male

Jun 15, 1984

Queens

New York

Queens County

127

9031

New York City Police Department - Missing Persons Squad

New York

New York

New York County

10039

2770 Frederick Douglass Boulevard, New York

2126947781

Local

Law Enforcement

KNMP-05714

New York City Police Department - Missing Persons Squad

Brown

Brown

Brown

11/08/2025


Area Last Seen: