UPS workers plead guilty to smuggling drugs through Valley airports - The Monitor Three Brownsville residents accused of smuggling drugs through Valley International Airport in Harlingen and McAllen Miller International Airport have pleaded guilty to the charges. Mario Enrique Patlan, 44, his daughter Cristina Patlan, 22, and Reymundo Abel Brown, 27, appeared Thursday before U.S. District Judge Andrew S. Hanen in Brownsville and each entered guilty pleas, according to the U.S. Attorney’s Office of the Southern District of Texas. Mario Patlan and Brown pleaded guilty to conspiracy to possess with intent to distribute more than 100 kilograms of marijuana and 500 grams of cocaine. As part of his plea, Mario Patlan is also forfeiting his interest in two residences in Brownsville . The conspiracy ran from 2007 to 2012, the USAO said.