Horror moment banner plane nosedives into sea in front of horrified beachgoers on packed shoreline killing pilot

THIS is the horror moment a banner plane nosedives into the sea at a packed beach, killing the pilot. Beachgoers on the famous Copacabana Beach in Brazil watched in horror as the light aircraft plunged into the water and sank within seconds. The plane was towing an advertising banner across the sky at in Rio de…