Clifford Olson

 

 

Age: 71

 

Summary: Canadian serial killer considered as one of Canada's most notorious criminals who was convicted of torturing and murdering 11 children, including five in the summer of 1981 while supposedly under surveillance by the Royal Canadian Mounted Police.

 

 

Cause of Death: Cancer

 

Born: January 1, 1940

 

Died: September 30, 2011

 

Location: Ste.-Anne-des-Plaines, Canada