John Selman

(Wikipedia) John Selman (November 16, 1839 – April 6, 1896) was sometimes identified as an outlaw and sometimes a working lawman of the Old West. He is best known as the man who shot John Wesley Hardin in the Acme Saloon in El Paso, Texas, on August 19, 1895.
... On the night of April 5, 1896, Selman was killed in a shootout by US Marshal George Scarborough. The two men had been playing cards and gotten into an argument. Continued