Details of Disappearance
Brown went missing on April 6, 1977 in the company of Richard E. Reisenberg, who was a patient at Creedmore Psychiatic Center in the New York City borough of Queens.
Brown had been admitted to Creedmoor as a voluntary patient in August 1976, after she had a mental breakdown. She was only in the facility about a day or so before she transferred to Hillside Medical Center, but while at Creedmoor she met Reisenberg while on a trip to Creedmoor. They began dating each other while inpatient at their respective hospitals. In January, just as Brown was transitioning to an outpatient program at Hillside, Reisenberg proposed and Brown agreed to marry him.
A photo of Reisenberg is posted with this case summary. He started developing behavior problems as a child. Twice before his fifteenth birthday he tried to take his own life, and as an adolescent he was diagnosed with "schizoid personality with a possible onset of schizophrenic disorder."
In 1971, he killed his wife and their 17-month-old son, stabbing her sixty times and strangling the baby to death. At the time of the killings, the couple had been having marital difficulties: Reisenberg's wife suffered from cataracts, their son was disabled, and Reisenberg himself had multiple extramarital affairs and felt frustrated and inadequate in his career. He was found not guilty of the murders by reason of insanity in 1973.
After his arrival at Creedmore, Reisenberg made multiple applications for early release and started leaving the hospital grounds on unauthorized day trips in the surrounding community. A ward supervisor found out and wrote a recommendation that Reisenberg be transferred to a maximum security hospital. Before this could be done, Reisenberg walked away from Creedmore and vanished with Brown.
About a month after Brown disappeared, she called her sister to say she was okay, and from their short conversation Brown's sister thought she was with Reisenberg because she wanted to be. At some point Reisenberg contacted his family to say he was starting a new life.
He and Brown have never been located. Due to Reisenberg's history of violent behavior, Brown is considered to be in danger from him. Her case remains unsolved.