Cesilia Pena was 14 when she vanished after school in Manhattan on October 6, 1976. A student at St. Alphonsus Commercial High School, she was last seen near the 157th Street subway station in Washington Heights while returning home and never arrived that day.

Witnesses placed her in the subway area, and police investigated early on but found no clear leads or suspects. Her family immediately feared foul play because it was out of character for her to be out of contact. Investigators have periodically revisited the file and considered possible links to criminal activity in the neighborhood or a serial offender, but the case remains unsolved.

Anyone who knew Cesilia, attended St. Alphonsus at the time, or remembers that stretch of 157th Street on October 6, 1976 is asked to come forward with information that might finally provide answers.