According to court documents, Murphy shot Mercedes Stalyon in the thigh in a drug deal gone bad. Stalyon told officers she had arranged a meeting with Anthony Mullis in the Walmart parking lot in Hixson so she could get some oxycodone. She took her brother and another man with her. When they arrived, Mullis and Murphy were already in the parking lot. Stalyon says when she arrived Murphy got out of the car and demanded her money. When she told him she did not’t have any money, Murphy reportedly shot her in the thigh.