Serial killer Rober Pickton is deadNewsDuration 2:04The 74-year-old B.C. man was in hospital after being the target of what Correctional Service Canada called a "major assault" on May 19 at the maximum-security Port-Cartier Institution in Quebec. Robert Pickton was found guilty of murdering six women, but bragged about killing 49, many of whom were Indigenous women from Vancouver's Downtown Eastside.