Federal policemen take a break at a base set up near the plane crash site in the municipality of Iturbide December 9, 2012. Mexican-American singer Jenni Rivera is feared dead after Mexican authorities said they found the wreckage of a plane she was traveling in on Sunday. Rivera was heading for the city of Toluca in central Mexico after a concert in Monterrey on Saturday. The singer was one of five passengers on the plane that also carried two pilots.