Editor's note: This is the fourth part of our "Back to the Triangle" series.

A reality for many heroin users is a felony charge and a long-term prison sentence. For some, that dark hour is the beginning of a bright new life.

(Watch Episode 4)

Previous episodes:

PART 1: Click here for Episode One: The Triangle Grows

PART 2: Click here for Episode Two: The Addiction is Everything

PART 3: Click here for Episode Three: Back to Life (Coming March 3)

Faces of the Triangle: