High school senior Carly Novell and her mom are sharing the scariest day of her life. She cowered in a closet during the shooting at a Florida high school. The same thing happened to Carly’s grandfather 69 years ago. Carly's grandpa, Charles Cohen, survived the first mass shooting spree in U.S. history by hiding in a closet above his parent's drug store. His family was slaughtered around him.