Ed O'Keefe, Robert Costa, Dr. Jon LaPook

Eye Opener: Teenage gunman kills 1, injures 5 in Iowa school shooting. Deadly Iowa school shooting leaves one dead, 5 injured. Gov. DeSantis and Gov. Haley addressIowa shooting and take on Trump in Des Moines town halls. New study using crib monitors link seizures to some sudden unexplained deaths in children.