I grew up in the Old Colony housing project in South Boston and became partners with James "Whitey" Bulger, who I always called Jimmy.

Jimmy and I, we were unstoppable. We took what we wanted. And we made people disappear--permanently. We made millions. And if someone ratted us out, we killed him. We were not nice guys.

I found out that Jimmy had been an FBI informant in 1999, and my life was never the same. When the feds finally got me, I was faced with something Jimmy would have killed me for--cooperating with the authorities. I pled guilty to twenty-nine counts, including...