Robert Kaplan, a former veteran Liberal MP and cabinet minister, died Monday at age 75 after losing a battle with cancer.
Kaplan is probably best known for his 1980-84 stint as Canada's solicitor general, when he presided over the demise of the RCMP's disgraced security service and the creation of the Canadian Security Intelligence Service.
He also ushered in the Young Offenders Act.
Interim Liberal leader Bob Rae disclosed Kaplan's death via Twitter.
"So sorry to advise of Robert Kaplan's passing," Rae tweeted. "He was a good friend to many who contributed much to Canadian politics and public life."