A citizen of the Congo, who was living in South Portland on a fraudulent diplomatic visa, was found guilty Thursday by a federal jury in Portland of several charges ranging from visa and bank fraud to illegal possession of firearms. U.S. Attorney Thomas E. Delahanty II said in a news release that a jury found 30-year-old Mukonkole Huge Kifwa guilty of visa fraud, possession of firearms by a non-immigrant alien, bank fraud and making false statements to a government agency. According to the indictment and trial evidence, Kifwa, who also goes by five aliases, was a citizen of the Democratic Republic of Congo who fraudulently obtained a diplomatic visa in January 2014 under a false name.