PhotoDr. Michael H. Stone, a professor of forensic psychiatry at Columbia University who has extensively studied serial killers, noted that Gary Ridgeway, the Green River Killer, murdered prostitutes during his first two difficult marriages. “Some of these men have little oases of compassion, within the vast desert of their contempt and hatred of women,” Dr. Stone said. “The testosterone levels are down,” Dr. Stone said. No one knows what has happened to a serial killer of young women on Long Island. “There has never been a survey of serial killers asking them why they stopped,” said Eric Witzig, a retired homicide detective and chairman of the Murder Accountability Project, a database of unsolved murders.

Source: New York Times April 26, 2018 23:26 UTC