
David Sparks (known online as 'Heavy D'), the co-host of Discovery Channel's Diesel Brothers, was arrested in earlier this month after years of legal battles tied to environmental violations finally caught up with him. What began as a civil case about diesel trucks and pollution has turned into a personal reckoning over accountability, fame, and air quality.
Sparks, known for his over-the-top personality and even bigger trucks, became a household name for turning diesel vehicles into beasts, that often disregarded environmental standards. The stunts and builds made great television — but they also drew the attention of environmental advocates. In 2016, a Utah-based nonprofit, Utah Physicians for a Healthy Environment (UPHE), sued Sparks and his companies under the Clean Air Act, claiming his team had tampered with or removed emissions-control devices on diesel trucks before selling or promoting them online.