Unsolved Serial Killings by R. J. Parker is a fascinating glimpse into the mindsets of cold-blooded serial killers. Complete with F.B.I. stats, profile classifications, and psychotic windows to peer into, this book is about the most horrific of criminals. There are some great examples of unsolved murders that leave the listener wondering, did the killer, stop killing, die, or go to prison on unrelated charges? A spellbinding new audiobook from an author with investigator in his blood!

If you enjoy true crime and especially listening to tales of unsolved serial killings, this is the book for you. It's hard to believe that, at any given time in the United States alone, there are 30 to 50 unidentified active serial killers at work, constantly changing their targets and methods. Some authorities think that number is even much higher.

Unsolved Serial Killings, a number-one best seller, is a compilation of over 20 criminal dossiers on serial killers who were never caught, including

• The Zodiac Serial Killer,
• The Frankford Slasher,
• The Original Night Stalker,
The Rapid City Serial Killer,
• The Babysitter Serial Killer,
• The Highway of Tears Serial Killer,
• The I-70/I-35 Texas Serial Killer,
• And many more.

R. J. Parker is the author of six serial killer books as well as Top Cases of The FBI. His Serial Killer Files Series include Women Who Kill, Unsolved Serial Killings, Case Closed: Serial Killers Captured, The Serial Killer Compendium, Doctors Who Killed, and No Killing in The Hallways (Shoot Shootings).