20/20 Menu About Bios Episodes Photos Releases Do No Harm - Releases June 28, 2023 ‘20/20’ Reports on the ‘Jekyll and Hyde’ Story of an Upper East Side Surgeon and How He Was Linked to His Wife’s Mysterious Disappearance On the surface, Robert Bierenbaum seemed to have it all – he was a surgeon, a skilled skier, a gourmet chef, fluent in multiple languages, and an expert pilot. But just like “Jekyll and Hyde,” he had a much darker side lurking underneath. He was a violent and controlling abuser, and his wife, Gail Katz-Bierenbaum, confided in friends she was afraid of him. Although authorities suspected him in Katz-Bierenbaum’s 1985 disappearance from their Upper East Side apartment, insufficient physical evidence allowed him to evade charges for 14 years. He used that time to carefully craft a new life across the country until prosecutors discovered a doctored flight log from the day Katz-Bierenbaum vanished, and his lies finally caught up with him. With reporting by ABC News correspondent John Quiñones, “20/20” features interviews with women romantically involved with him after he left New York City, including Stephanie Youngblood, who denied his proposal and reveals surprising new details about t Press Release - Series
June 28, 2023 ‘20/20’ Reports on the ‘Jekyll and Hyde’ Story of an Upper East Side Surgeon and How He Was Linked to His Wife’s Mysterious Disappearance On the surface, Robert Bierenbaum seemed to have it all – he was a surgeon, a skilled skier, a gourmet chef, fluent in multiple languages, and an expert pilot. But just like “Jekyll and Hyde,” he had a much darker side lurking underneath. He was a violent and controlling abuser, and his wife, Gail Katz-Bierenbaum, confided in friends she was afraid of him. Although authorities suspected him in Katz-Bierenbaum’s 1985 disappearance from their Upper East Side apartment, insufficient physical evidence allowed him to evade charges for 14 years. He used that time to carefully craft a new life across the country until prosecutors discovered a doctored flight log from the day Katz-Bierenbaum vanished, and his lies finally caught up with him. With reporting by ABC News correspondent John Quiñones, “20/20” features interviews with women romantically involved with him after he left New York City, including Stephanie Youngblood, who denied his proposal and reveals surprising new details about t Press Release - Series
