A “Saturday Night Live” writer was slammed on social media for tweeting that President Donald J. Trump's youngest son, Barron, would become a school shooter. In a now deleted tweet, Katie Rich said Friday that 10-year-old Barron Trump “will be this country's first homeschool shooter.” Facing a firestorm of criticism, Rich then made her Twitter account private, blocking public viewing of it. .@nbcsnl writer @katiemaryrich calls President Trump's 10-Year-Old son a mass murderer. Hey @NBC @NBCUniversal why is this hate tolerated? pic.twitter.com/ZYDVSETLJn — Mark Dice (@MarkDice) January 21, 2017