In order to cut to the chase early: WARNING, Extremely explicit and gory.
and
Don’t waste your time, although that did not stop me from writing the following rant.

Shawcross Letters has an important subtitle: My Journey Into The Mind Of Evil by John Paul Fay (and Brian Whitney). Brian Whitney is the author of this publication. John Paul Fay is a narrator and commentator. Fay is a commentator when revealing the content of letters written by Arthur Shawcross, an actual serial killer who died in 2008. Fay acts as a narrator when he describes his own struggles with life. Incarcerated Shawcross has been described as evil personified. A serial killer with a fondness for cooking and eating various victim body parts, Shawcross never meets Fay except through letters. If evil personified means the person is a unique representation of evil, Fay would disagree. Fay describes Shawcross as almost a soulmate. It seems as if Fay is saying that he would be Shawcross if only he (Fay) were braver. For now, Fay claims to be able to sublimate the same evil acts described by Shawcross in letters into Fay’s own writings with this book.