Cross

When Alex Cross was still a rising star in the Washington, D.C., Police Department, an unknown shooter gunned down his wife, Maria, in front of him. His need for vengeance was placed on hold as he faced the challenge of raising his children alone. Years later, his life finally feels like it's in order, and he even has a chance at a new love. Then Cross's former partner, John Sampson, calls in a favour. He's tracking a serial rapist in Georgetown, but the victims refuse to reveal anything about their attacker. When the case triggers a connection to Maria's death, it seems Alex may have a chance to catch his wife's murderer after all this time.
Cross by James Patterson, narrated by Garrick Hagon