David Ambroz doesn't remember a time before he was homeless. He, his mother and two siblings spent much of his childhood surviving on the streets of New York City. As a teenager he entered the world of state custody, which came with its own uncertainty. In Ambroz's memoir "A Place Called Home" he tells a vivid story of hunger, welfare, his mother's mental illness and abuse, and how he overcame all of that to build a new life.