Three Sheridan teens made their first appearance in 4th Judicial District Court on Tuesday. 19-year-old Dennis Poitra, Jr., 16-year-old Wyatt Bear Cloud, and 16-year-old Dharminder Vir Sen were arraigned before District Court Judge John Fenn. All three men are charged with 1st Degree Murder or Accessory to 1st Degree Murder in the August 26th shooting death of Sheridan resident Robert Ernst.