MILFORD (AP) — A Pennsylvania man who police say killed his girlfriend and left her burned remains on a llama farm is heading to trial. Twenty-six-year-old Sky McDonough has been charged with kidnapping, evidence tampering and other counts in the April 2016 death of 17-year-old Leanna Walker. Police said the girl left home with McDonough, and they camped in several locations, including the Milford Township llama farm. McDonough was arrested on other charges. Walker's burned remains were found a month later at the farm. State police said the victim's Facebook account has conversations indicating that she said he had threatened her. McDonough told WFMZ-TV reporters: “I didn't kill her. I don't know what happened to her."