Tourist Trap — Julie Smith

Easter morning dawns foggy--and deadly--in San Francisco when attorney/ sleuth Rebecca Schwartz and her journalist friend Rob Burns make a gruesome discovery. The large cross erected for a mountaintop sunrise service is burdened with a crucified corpse. The corpse of a tourist from Phoenix.

There's a single-minded killer loose in the Bay Area. Other murders, always set in popular tourist spots, are quick to follow. And when the murderer starts phoning Rob to announce future crimes, Rebecca finds herself running afoul of the police. She's been at the site of too many deaths. She knows too much. And when a man is arrested, she knows he's innocent.

Someone else out there is killing visitors, and he's not going to stop until he's destroyed the city.