Missing

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

An FBI agent is kidnapped by a psychopath who hears voices telling him to go on a killing spree. The agent is Riley O'Connor, and the man who snatched her is going more insane by the day. O'Connor got on a flight to San Francisco and was never heard from again. The search comes up dry, but Jack Beckett will not quit until he finds his friend. Along the way, he needs help from people who don't want to play ball, including a radio station host and the owner of a white van with a dark past. Beckett is convincing. Either they help, or he will beat the crap out of them. They quickly agree to cooperate. But it may be too late. The psychopath begins a killing spree in Santa Cruz, California. Beckett gets one last desperate chance to find the killer, now armed with a powerful rifle and a diabolical plan before he plunges into total madness.