Wednesday, October 17th, 2007 — The confessed ringleader of a scheme that has racked up $1 million in fraudulent accident insurance claims in the Metroplex since 2000 has pleaded guilty in federal court, officials said. Tuan (Andy) Nguyen, 32, entered his plea recently before U.S. District Judge Jorge Solis, said U.S. Attorney Richard Roper of the Northern District of Texas.