CUOMO: Breaking news. Five people killed after a charter plane crashes into a shopping mall moments after takeoff in the Australian city of Melbourne. Four Americans are among the dead. We've got CNN's Alexandra Field, live in Hong Kong with the breaking details. What do we know?</s>ALEXANDRA FIELD, CNN CORRESPONDENT: Well, Chris, all people on board that plane were told there was an Australian pilot. There were four American passengers, all dying on that plane when that plane crashed into the shopping center because this happened in the early morning hours. That shopping center was closed, but we do know that people on the ground who witnessed the plane go into the building were treated for shock. One of the passengers on that plane was a former FBI agent, a 30-year veteran, Greg Reynolds DeHaven from Texas. His sister says that he was in Australia on the trip of a lifetime. She says that this was a chartered flight, talking the passengers out for a golf outing. She's remembering her brother today as a man who was both handsome and athletic. Investigators still trying to figure out what went wrong. Of course, that shopping center remains closed while they do their work. Part of the freeway nearby was also temporarily shut down with debris scattered across it. Australia's prime minister remembering the victims this morning, putting out a statement, offering his condolences -- Alisyn.</s>CAMEROTA: Oh, my gosh. So tragic, Alexandra. Thank you for all that information. Well, he's already getting his praise, but who is Lieutenant General H.R. McMaster? General Mark Hertling knows him well. He's next.
Four Americans Killed in Australia Plane Crash.