Robert Pickton - Canadian serial killer, serial rapist, former pig farmer and possible cannibal. Fed the bodies to pigs, and maybe mixed it with pork that he sold.
The cops seriously dropped the ball on this. The owner of the property Robert lived on was a popular party spot and it was an open secret that he was doing sketchy shit. So much evidence got destroyed or lost before the police finally bothered to do something. I highly recommend the Last Podcast episodes on it.