A Louisiana woman was arrested on Wednesday after a month-long investigation into the death of her husband, who authorities say she killed. NOLA.com reports that  Shantel Wagner, 35, called 911 at around 11:25 p.m. on June 17 to report that her husband, Troy Smith, 44, a Jefferson Parish Sheriff’s Sergeant, shot himself in the head. Wagner reportedly claimed her … Continue reading Wife says hostage negotiator Sgt. husband shot himself in the head, but forensic evidence says it’s murder: Police