He was a gifted hand surgeon, father of two, and was just put on the list of Memphis' top doctors. And now he's dead. Gunned down in his exam room, police officers say, by a man who harassed the victim, shot him and then tried to run away. And, 70% of Americans will experience temperatures of over 90 degrees over the next few days. And some people think all this hot weather is making people act ... well, kind of weird. Plus, as of now, there have been 37 shark attacks worldwide, six of them fatal. And this nurse is now officially one of the statistics. She spoke with Les Trent. And, we're getting the closest look yet at the moment when tourists visiting an active volcano in New Zealand had to run for their lives. 22 people were killed and more than two dozen severely injured.