Gunslick

They called Yates "Mano Negro" because he was never without the black glove on his left hand. He was the deadliest gunfighter in Mexico, and his last job had made him the wealthiest. The bitterness of renting himself out as an executioner was over. Now he was returning to the States with his gold, looking for a new life. But there was a hunter at his back -- an assassin sent to avenge his last kill. Unless Yates could shake the relentless gun on his train he would be the richest man on boot hill.