Don’t Turn Around by Harry Dolan

The police call him Merkury. He’s a killer who seems to choose his victims at random. He leaves no evidence behind, and no witnesses. Except for one. But what did she really see? When Kate Summerlin was eleven years old, she climbed out her bedroom window on a spring night, looking for a taste of freedom in the small college town where she was living with her parents. But what she found as she…