Rick Rescorla fought in Vietnam as a young Army lieutenant. Years later he was head of security for Morgan Stanley in the World Trade Center. After the 1993 bombing he was convinced terrorists would return, so he created a disaster plan and rehearsed it with employees, sometimes taking heat for it. On September 11, 2001, he led the evacuation of the South Tower offices. Survivors remember a calm voice over a bullhorn singing to steady the crowd. He was last seen climbing back up the stairs to sweep for anyone left behind, minutes before the tower fell. His preparation and courage are credited with saving thousands. Real love goes back for the ones still inside.