3 Found Dead In Big Horn, Wyo, House; Suspect Arrested In Montana Posted by John Axtell Date: March 30, 2020 6 Views SHERIDAN, Wyo. (AP) – The Sheridan County, Wyo, Sheriff’s Office says 3 people were killed in Big Horn on Sunday with the suspect arrested in southern Montana. The Sheriff’s Office got a call Sunday night that a man had contacted a family member and said he killed someone. Deputies then found three adults dead at the man’s house in Big Horn. Sheriff’s officials in Big Horn County, Montana, arrested the man Sunday night and he remains in custody in Montana. His name has not been released. The Sheridan Press reports the Sheridan County Sheriff’s and the Wyoming Division of Criminal Investigation are both investigating the case.