The Making of a No. 1 YouTube Conspiracy Video After the Parkland Tragedy. YouTube.com, Google Inc, Parkland, Fla, Shooting (2018), Fringe Groups and Movements, Video Recordings, Downloads and Streaming, School Shootings and Armed Attacks, Hogg, David, Marjory Stoneman Douglas High School (Parkland, Fla), Cyberharassment