The suspected shooter opened fire Thursday morning, injuring three people inside Rigby Middle School. Those injured were two students and a custodian, who sustained non-life threatening injuries. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bit.ly/3totMjF WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #WorldNewsTonight #RigbyMiddleSchool #IdahoMiddleSchool