(Photo: AP Photo/Andrea Shepard) NAME: Eljvir Duka ALIASES: Elvis Duka, Sulayman AGE: 23; Born in the former Yugoslavia, Aug. 28, 1983. Ethnic Albanian. LIVES: Cherry Hill, N.J. IMMIGRATION STATUS: In United States illegally. OCCUPATION: Operates businesses known as Qadr. Inc., Colonial Roofing and National Roofing, all of which list business addresses the same as his residence. The Duka brothers are ethnic Albanians born in the former Yugoslavia. They're all illegal immigrants but have been living in the United States since 1984, when they were little boys. All are married with young children. They're also related by marriage to Shnewer. They attended Cherry Hill High School West. For years, neighbors complained about problems at their family's Cherry Hill home, from loud parties to livestock being kept in the yard. They operated roofing companies that did work for fire houses in Cherry Hill, among other places.