For many convicts, prison is supposed to be a phase when they can look back on what they've done, repent, and hopefully get ready for the world outside once they've served their terms. Rehabilitation is key here. Sadly, it is not as easy as it sounds. Ex-convicts often find themselves on the wrong side of the law, which is often caused by how the world looks at them. Depression, drug use, etc. are quite rampant among them. But here's a video that shows one of the ways a few ex-cons found their footing and avoided falling off the ledge.
Check out their stories.