(Reuters) - In two U.S. school shootings within eight days, students have attempted to tackle the shooters, sometimes at the cost of their own lives, drawing praise for reducing the bloodshed by taking a step that experts agree should only be a last resort.
At the University of North Carolina at Charlotte last week, Riley Howell, 21, was killed as he challenged a gunman in his classroom after school officials sent out an emergency alert with a mantra disseminated by U.S. law enforcement: "Run, Hide, Fight."
