In a now-viral video, David Keane unwittingly encourages the dead students to "follow your dreams"<br/><a href="https://www.rollingstone.com/politics/politics-news/ex-nra-chief-duped-into-delivering-graduation-speech-to-empty-chairs-representing-victims-of-gun-violence-1188923/" class="button purchase" rel="nofollow noopener" target="_blank">Read More</a>