Wyatt Berry Stapp Earp (March 19, 1848 – January 13, 1929) was an American lawman and an assistant marshal to his brother, Virgil Earp. Earp was involved in the gunfight at the O.K. Corral, during which he and other lawmen killed three outlaws. While Earp is usually depicted as the key figure in the shootout, his brother Virgil was both the U.S. Marshal and the Tombstone city marshal and had decided to enforce a city ordinance prohibiting carrying weapons in public and to disarm the Cowboys.
In 1874, Earp arrived in the boomtown of Wichita, Kansas, where his reputed wife opened a brothel. At this brothel, Earp was arrested more than once; he may have been a pimp. He was appointed to the Wichita police force and developed a good reputation as a lawman but was "not rehired as a police officer" after a physical altercation with a political opponent of his boss. Earp left Wichita, following his brother James to Dodge City, Kansas, where his brother's wife Bessie and Earp's common-law wife Sally operated a brothel. In this city, he became an assistant city marshal.