Ex-gang members get a second chance in Dorchester.
Paul Burns sits behind a battered wooden desk. He meticulously takes notes from his book “HVAC Fundamentals: Volume 1: Heating Systems, Furnaces and Boilers,” studying the craft of heating and ventilation repair. He bends his head towards the book and whispers the sentences in chapter nine: “Indoor Air Fundamentals.” He pulls up his shirt’s sleeves. Both his arms are full of tattoos. “I got a couple tattoos. I got some […]