Instruct: Classify Amazon reviews into positive or negative sentiment
Query: without mercy and without remorse

PeeWee Gaskins may have developed into a serial killer as a result of his childhood experiences but the reader is left facing the adult and that adult's relentlessly cruel actions. If you need to face the fact that "evil" exists in the world in an undiluted form, read this book, & wake up. Facing reality is one way of protecting yourself.