Persuader by Lee Child

Never forgive, never forget.

Jack Reacher lives for the moment. Without a home. Without commitment. But he has a burning desire to right wrongs - and rewrite his own agonizing past.

Never apologize. Never explain.

When Reacher witnesses a brutal kidnap attempt, he takes the law into his own hands. But a cop dies. Has Reacher lost his sense of right and wrong?

Although the Jack Reacher novels can be read in any order, Persuader is seventh in the series.