Chavez's new novel is Before She Finds Me.
At CrimeReads she tagged six books that feature killers with a code, including:
THE INNOCENT, David BaldacciRead about the other entries on the list.
This novel introduces Will Robie, the guy the U.S. government calls on to eliminate the worst of the worst—enemies of the state, monsters who prey on the weak, and men with more money than morals. Robie is the type to sleep soundly after killing five men, but who turns off his scope when a female target of his surveillance begins to undress. He’s also the type of hitman who has second thoughts when his latest target turns out to be a young mom. After he refuses to pull the trigger, a fleeing Robie crosses paths with a teen runaway. Against all his training, he can’t walk away—especially after learning her parents were killed, and her life, too, is in danger.
--Marshal Zeringue