Tyrone Williams "Ty" Conn is the only person in the last four decades to escape from the Kingston Penitentiary, Canada's most secure and notorious prison. The feat had been considered impossible prior to Conn's ingenious escape. He employed a homemade grappling hook to scale the wall and used cayenne pepper to prevent dogs from following his scent.
A bank robber, Conn had already escaped from several lower-security institutions. Conn escaped the prison on May 6, 1999. He was found in Toronto two weeks later and surrounded by police, only to commit suicide rather than being captured.
