John Keller novels

"Keller's a hit man. For years now he's had places to go and people to kill. But enough is enough. He's got money in the bank and just one last job standing between him and retirement. So he carries it out with his usual professionalism, and he heads home, and guess what? One more job. Paid in advance, so what's he going to do? Give the money back? In Des Moines, Keller stalks his designated target and waits for the client to give him the go-ahead....