I saw a documentary where an inmate was scamming people by placing ads in men's gay magazines. They would ask for money and/or extort them after finding out who

I saw a documentary where an inmate was scamming people by placing ads in men's gay magazines. They would ask for money and/or extort them after finding out who they were and where they lived. He amassed hundreds of thousands of dollars using letters and the prison phones in this scam. He had already purchased a house and a car in preparation for his release and saving up to buy his way out prison. A lawyer stole his money and blamed it on his friend and law partner, a judge, who the inmate had murdered (including his wife who was a shoe-in for mayor)...from prison. The lawyer snagged the mayoral seat after she was killed--for a short period until getting caught and sent to prison himself. Apparently prison offers few barriers to conducting business.