Kevin Shird is a writer. He also works with young people, especially those who other people have given up on.
He's a good guy.
He's also a man who has served more than a decade in prison for dealing drugs on the streets of Baltimore, a lifestyle made famous by the TV show The Wire.
What happens inside someone's head to switch them on to the potential of a different future?
And how do they shake off the reputation of violence that's defined their life?
As told to Sam Walker