Roscoe Bryant

"I won't have it said that i left you with nothing, boy." - Bob to Silas Greaves while giving an old Spanish coin to him before hanging him and his brothers.

Roscoe "Bob" Bryant was a character featured in Call of Juarez: Gunslinger. He was also one of the historical characters appeared in the game.

Call of Juarez: Gunslinger
Roscoe "Bob" Bryant was member of the Juarez Gang along with Jim Reed, and Johnny Ringo in 1868 when they hanged Silas Greaves' brothers in Juarez, Mexico, but he let Silas himself live, leaving him with a Spanish coin, telling Silas that at least he didn't leave him with nothing. He was riding with Wild Bunch during the told events of Gunslinger. Silas would later grow up to be a bounty hunter.

Later on he moved to Abilene, Kansas, stayed there and changed his name to Ben. He worked as a bartender at a local saloon after retirement from being an outlaw. His days of hiding were up when he was soon discovered by Silas Greaves. Who discovered from Butch Cassidy that Bob was never in the gang and only supplied them with booze.

Silas recounts to the patrons of how he killed other historical outlaws like Johnny Ringo, Butch Cassidy, and the Sundance Kid. After Jack claims Silas made up the whole story and is a fraud and Silas responds by placing the Spanish coin on the table and tells Bob that the past always has a way of catching up. Bob tries to reason with Silas, stating that he's changed his ways.

The finale offers the player a choice: take revenge by killing Bob in a duel, or forgive Bob, let go of his vendetta and thereby redeem Silas' blood-stained soul. Regardless, Silas decides to hit the road again, while Dwight is revealed to be none other than a young  Dwight D. Eisenhower, who is either stunned into silence by the slaying of Bob, or is offered some words of advice by Silas as he heads out.

Real life
In the real life  he was member of the John Kinney Gang during New Mexico's Lincoln County War. He was killed by members of Selman's Scouts near Seven Rivers, New Mexico in September, 1878.