A karate expert talks about his early life, his turbulent childhood, which was marked by sexual abuse and a career as a pimp.

A karate expert recounts his early life, his turbulent childhood, rife with sexual abuse and a career as a pimp. Andreas "Karate Andy" Marquardt's subsequent rehabilitation treatment, enables him to start life again with the one girl who suffered his worst abuse. He runs a karate school today for children to prove that its possible to turn over a new leaf.—Shreeram