Q is for Quarry

Q is for Quarry is the seventeenth in the Kinsey Millhone mystery series by Sue Grafton and is based on a true crime. She was a 'Jane Doe', an unidentified white female whose decomposed body was discovered near a quarry off California's Highway 1. The case fell to the Santa Teresa County Sheriff's Department, but the detectives had little to go on, and after months of investigation, the murder remained unsolved.
That was eighteen years ago. Now the two men who found the body, both nearing the end of long careers in law enforcement, want one last shot at the case .