Four people, brutally murdered during the robbery of a Las Vegas convenience store. As the police investigation of the killings moves forward, the cops begin to suspect that robbery may not have been the motive at all. It appears more and more likely that the killer was really after one of the victims and the heist was only a diversion. But which one was the real target? Was it the young clerk? How about the Hispanic man who worked at the airport? Or maybe it was the tough guy who was employed as a bouncer at a drug-infested club. Then again, could it be the young woman from New York State who spent her nights playing video poker? Detectives Steve Garneau and Terry Bolton follow the clues they hope will answer their questions and lead them to the identity of the killer dubbed the One-Armed Bandit.