By Gene Miller, "in collaboration with" Barbara Jane Mackle. The kidnapping of Florida millionaire's daughter Mackle in 1968 became the subject of two TV movies later on.
The cover appears to have been printed off plumb, but otherwise the paperback is in good shape -- some mild edgewear, some page toning, but it sits quite straight, no cracks to the spine -- and you seldom see the book available in any edition, so this one's a great one to grab at this price.