VANCOUVER, British Columbia (Reuters) - Pork products processed and distributed from the farm of accused Canadian serial killer Robert Pickton may have contained human remains, a provincial health official said on Wednesday. Pickton raised and slaughtered pigs at the Port Coquitlam farm as a part-time occupation until his arrest at the property in February 2002, and police believe he gave or sold processed meat products to friends and acquaintances. Pickton, 53, is awaiting trial in the killings of at least 22 of more than 60 missing Vancouver prostitutes who disappeared over the past decade and are feared to have been...