The Chalk Man by C.J. Tudor

In 1986, a headless girl's body is found in the woods near the town of Anderbury amidst a series of violent events. Thirty years later, Ed, now an adult, and his friends from that time--Gav, Hoppo, Mickey, and Nicky--are still haunted by what happened. Told in chapters alternating in the past and present, the reader learns what led up to the girl's murder and Ed's attempts now to uncover who killed her and who was responsible for the other gruesome acts. The Chalk Man is a story of childhood, memory, and evil with a nod to Stephen King.