A Pontotoc County teenager is facing first-degree murder charges. Investigators say a 15-year-old boy stabbed 18-year-old Jaimone Kirkland in April. Kirkland was in his car with his girlfriend when the 15-year-old began throwing rocks at the vehicle. The juvenile then went to Kirkland’s car and stabbed him multiple times. The girlfriend took Kirkland to the hospital, where he died.