Jul 30, 2013 — A lot of people like to barbecue in the summer. For most, it's a relaxing activity. For others it's serious business. Dan Mullin of Gouverneur has a passion for cooking and has made a career out of it. Conant Neville caught him at the Potsdam Summer Festival as he was flipping burgers and mixing barbecue sauces for this "Heard up North" feature.