In 2000, Robert Charles Browne wrote a letter from his prison cell in Colorado, where he was serving a life sentence for the murder of a young girl. "The score is you one, the other team 48," wrote Browne. "Seven sacred virgins entombed side by side, those less worthy are scattered wide."

No one in local law enforcement knew what to make of this message, nor could they guess the bizarre murder saga about to land in their laps. Then in 2002, three retirees formed their own cold case squad-and wound up tracing Browne's tantalizing and enigmatic clues to unsolved murders in six states.

This is the gripping, powerful true story of a cold-blooded killer-and the tireless investigators who defied all odds to uncover his chilling truth.