HARD TO KILL: A Scola Cassidy Novel:

Howard Scola Cassidy has spent decades as the world's most feared hitman, a ghost who leaves no witnesses, no trails, only bodies. But when a Russian mob boss places a five-million-dollar bounty on his head, every assassin, mercenary, and contract killer on the planet comes hunting. They made a fatal mistake. Cassidy doesn't hide. He doesn't run. He hunts back. One by one, he dismantles the army sent to kill him, turning predators into corpses, erasing hired guns with surgical precision. Ea...