Slocum and the Backshooters — Jake Logan

SLOCUM needs eyes on the back of his head.

John Slocum is having a fine time traveling across Indian Territory, until he's knocked out and robbed of a pocket full of poker winnings, his gun, and his horse. But getting back what's his will pit Slocum against a gang of killers who don't care how they kill, as long as you end up dead.