A Killer in Shadow: An FBI Psychological Thriller (Samantha Hayes Thrillers Book 2)

Women keep disappearing after boarding San Diego's trolley. No one has ever seen them leave. One woman barely escapes. She's the only witness to a predator moving through the city unseen. Then a mass grave is uncovered beneath one of San Diego's most visited landmarks. The victims have nothing in common except one final trolley ride. FBI agent Samantha Hayes sees what others miss. Behavior. Patterns. The smallest detail that doesn't belong. As Sam retraces the victims' final hours, every clue points back to the same place. The killer isn't hunting from the shadows. He's hiding in plain sight. His next victim is already on board. Sam has one chance to stop him before the doors close again. Perfect for fans of fast-paced psychological thrillers, intelligent investigations, and unforgettable serial killers.