Chief May 2, 2019 9:05 am UNC Charlotte Student Died Tackling Gunman Investigators in the shooting that killed two at the University of North Carolina Charlotte called Riley Howell a hero, after the 21-year-old college junior died tackling the gunman to stop the shooting. US & World Videos 1:02 20% of nurses to leave field within 2 years 1:36 WATCH: Some of the most talked about looks at the Met Gala 2:23 Climate change is moving Tornado Alley and driving more tornado outbreaks 1:47 Reese Witherspoon and Ryan Phillippe's daughter Ava calls out body shamers 1:41 Trump fined additional $1,000 for gag order violation and threatened with jail