[4] He was eventually wanted by the Wyoming Stock Growers Association and the Union Pacific Railroad, which offered rewards for his capture.
Army officer William H. H. Llewellyn, seeking to protect pony herds on the Pine Ridge Reservation,[9] was dispatched to capture him.
In a melee, two of Doc's gang were killed and a lawman named Hazen was wounded[10] but Middleton was captured and was taken to Cheyenne, Wyoming, where he was convicted of grand larceny and served a prison sentence from September 18, 1879, and was released on June 18, 1883.
[1] A short documentary film aired on Nebraska PBS in 2017 by filmmaker David Higgins (The Aviation Cocktail) called Doc Middleton: The Unwickedest Outlaw.
The opening of the short states that Higgins has spent a decade researching the life of the famed Nebraska outlaw.