Barr is accused of fatally shooting 20-year-old contractor Silis Hanrahan while he was working on his house on Ripka Street in Philadelphia. Investigators allege Hanrahan was in the country illegally and had ties to an international criminal organization called the "Traveling Conman Fraud Group." Charges against a Philadelphia homeowner accused of fatally shooting a 20-year-old contractor with alleged ties to an international criminal organization have been downgraded. George Barr, 75, of Philadelphia (Photo: Philadelphia Police)Barr was originally charged with murder among other crimes, but prosecutors on Wednesday downgraded that charge to third-degree murder. DHS described the group as a "transnational criminal organization," and added that neither ICE nor Border Patrol had encountered Hanrahan previously.