Patrick Ronald Silva, 43, of Burnsville appeared in U.S. District Court in Asheville Friday, April 11, for arraignment on federal indictments charging him with sexual exploitation of a minor. The charges were the result of an investigation in February 2013 that resulted in Silva and Tabatha Black being arrested. Black has not yet been served with warrants to appear in U.S. District Court on the federal charges. She was charged locally with four felony counts of first-degree sex offense with a minor and has remained in jail since her arrest. Silva has been out on bond awaiting trial on the same charges in Yancey County. He was served with federal warrants on Tuesday, April 8th. Appearing before a U.S, District Court judge, the federal indictment was read and Silva entered a not guilty plea. He remains in jail until trial or a plea agreement is reached, or he calls for a bond hearing. A trial date of May 7, 2014 was set during the arraignment. The original charges allege that Black took inappropriate photos involving a child and Silva then distributed them online. Local authorities were contacted by overseas law enforcement that discovered the photos online and tracked them back to Silva.