The House of Pain — Franklin Allen Leib

When a spoiled teen is kidnapped outside her prestigious prep school, her parents are faced with the horror only those who've lost a child can know. In their desperation, afraid to call the police, they enlist the help of millionaire “Crazy Johnny,” a former tunnel rat in the Vietnam War. Stricken by the brutality he saw children endure in the war, he suffers from post-traumatic stress disorder.
Crazy Johnny tracks down the kidnappers, spilling blood along the way. It is only in the aftermath that the true nature of the crime emerges. Johnny's vigilantism and whether or not justice will be serves is now in the hands of the United States justice system.