SPRINGFIELD, Mo. (AP) — A Missouri man has been charged with killing a 19-year-old woman whose body was found more than a week after she went missing. Thirty-two-year-old Lonnie Leroy Williams, of Springfield, was charged Friday with first-degree murder in the death of Mackenna Milhon, who was reported missing Dec. 20. Her body was found Monday afternoon outside a home north of Springfield. A probable cause statement says Williams told investigators he stabbed Milhon after she slapped him because she was upset that he didn’t have drugs for her. Williams’ girlfriend, 23-year-old Olivia Vega, was charged with tampering with evidence afterward.