Gail Katz-Bierenbaum was last seen at the Upper East Side Manhattan apartment she shared with her husband, Dr. Robert "Bob" Bierenbaum, on July 7, 1985. Bob claimed that he and Gail argued that morning and Gail walked out of their apartment on east 85th Street to sunbathe in Central Park. Gail has never been heard from again.

Investigators believed that Robert was involved in Gail's disappearance for many years and was responsible for her presumed death, but didn’t have enough evidence to make an arrest in the case.

Promo: A Nefarious Nightmare

SOURCES
https://abc7ny.com/robert-bierenbaum-gail-katz-murder-disappearance-2020-tonight/11151762/

The Surgeon's Wife: A True Story of Obsession, Rage, and Murder (St. Martin's True Crime Library) Kindle Edition
by Kieran Crowley

https://casetext.com/case/people-v-bierenbaum-2