Narrated by David Ackroyd
This is possibly a repackaged/re-branded episode of History's Mysteries.
The Sutton–Taylor feud began as a county law enforcement issue between relatives of Texas state law agent, Creed Taylor, and a local law enforcement officer, William Sutton, in DeWitt County, Texas. The feud cost at least 35 lives and eventually included the outlaw John Wesley Hardin as one of its participants. It started in March 1868, not reaching its conclusion until the Texas Rangers put a stop to the fighting in December 1876.