The Ripper killings stopped after Druitt's death

One of the most mysterious aspects of the Jack the Ripper case is that the Ripper killings abruptly ended after November of 1888, even though the murderer was never identified or arrested. If the Ripper himself had died around that time, however, his death would explain why the murders ceased. In December of 1888, Montague John Druitt committed suicide. Druitt was rumored to have suffered from hereditary mental health issues, and he chose to end his own life following his dismissal from a school in Blackheath, where he had worked as an assistant schoolmaster. His decomposing body was recovered from the River Thames on December 31st. The timing of Druitt's suicide, shortly after the last Ripper murder, provides an answer one of the most pressing questions about Jack the Ripper: why he stopped killing.