For years, the evidence sat waiting. The killers believed the trail had gone cold.Some murder investigations are solved in days. Others remain open for years or even decades, surviving changes in detectives, technology and entire generations of forensic science.Cold Case Serial Killers examines seven cases in which investigators eventually found answers after the original trail had faded.From the long hunt for Lonnie Franklin Jr., the "Grim Sleeper," to DNA breakthroughs involving John Floyd Thomas Jr. and Walter Ellis, these cases show how preserved evidence, renewed investigations and advances in forensic technology can transform apparently unsolvable crimes.The book also examines the extraordinary investigation surrounding Terry Peder Rasmussen and the Bear Brook murders, the posthumous identification of Robert Eugene Brashers, new developments connected to Richard Cottingham, and the DNA breakthrough that identified Alan Wade Wilmer Sr. in murders associated with the Colonial Parkway investigation.The seven cases are: - Lonnie Franklin Jr. - The Grim Sleeper- John Floyd Thomas Jr. - The Westside Rapist- Walter Ellis - The North Side Strangler- Terry Peder Rasmussen - The Bear Brook Killer- Robert Eugene Brashers - The Killer Who Was Already Dead- Richard Cottingham - The Torso Killer- Alan Wade Wilmer Sr. - The Colonial Parkway BreakthroughBased on documented investigations, forensic evidence, court records and established reporting, Cold Case Serial Killers follows not only the crimes themselves, but the years of detective work that eventually brought investigators closer to the truth.Seven investigations. Decades of unanswered questions. And evidence that refused to disappear.