(CP)-The Nunavut RCMP says a man recently charged in the killing of a 15-year-old girl about four decades ago had served time for two other murders when he was arrested this week at a halfway house in Ottawa. RCMP spokesman Cpl. George Henrie says Jopey Atsiqtaq was out on parole and living at the halfway house after serving a sentence for killing two other people in Iqaluit in the 1980s. “He did his 25-year life sentence, was released from the prison system, and he was residing at a halfway house with various conditions,” Henrie said in a phone interview Friday. He was arrested Tuesday at the house and appeared in court in Iqaluit the next day on a charge of second-degree murder in the killing of Mary Ann Birmingham. RCMP…