A 14-year-old Dallas boy is locked up for peddling drugs. Police found him dealing heroin from his south Dallas home. An undercover officer went to the home to make a buy and listened as the boy explained how to mix heroin with an over-the-counter medication to make Cheese, the drug concoction responsible for about two dozen deaths in North Texas in the past three years. The boy's parents are also under investigation to see what they know about their son's activities.