Jack was introduced to heroin at age nineteen. At the time, he was behind bars serving a prison sentence. He talks with Theo about the early manifestations of his addictive personality, his multiple incarcerations, and the progression of his disease over three decades.Jack's moment of clarity came only after he'd hurt those closest to him and ended up alone and invisible to the world around him. That's when he finally embraced his higher power, learned humility, and began to turn his life around.