David Hogg has an erratic twitter posting history. Posts a video about his friend on the beach in California in Aug 2017 and states he found his calling (making and starring in videos). He doesn't post again until Jan 2018.
His posts in Jan 2018 include hearing a gunshot outside his house, and discovering there's a tv production studio at his school. Guess who joins the studio? Wonder who else was in this studio:
http:// eagleeye.news/news/tv-productions-weekly-news-broadcasts-neglected/