Top Story with Tom Llamas - July 28 | NBC News NOW

Tonight, the sailing camp tragedy off the coast of Miami Beach. Video exclusively obtained by NBC News shows the moment a barge crashes into a sailboat filled with young campers, killing two children. First responders and rescue divers frantically searching the waters trying to save the campers and their counselor. Also breaking tonight, dangerous storms on the move. Tornadoes touching down in the planes after this monster twister ripped across South Dakota. Detroit Metro Airport underwater as millions face ...