In addition to a manifesto, the Minnesota Catholic school shooter left behind a series of videos online. NBC News' Tom Winter says the videos included a series of diaries and writings, a diagram of a church and that the suspect was whispering violent things under his breath throughout the video. For more context and news coverage of the most important stories of our day, click here: nbcnews.com » Subscribe to NBC News: nbcnews.to/SubscribeToNBC » Watch more NBC video: bit.ly/MoreNBCNews » Subscribe to Here's the Scoop podcast: nbcnews.com/heres-the-scoop-daily-podcast NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse and engaging news stories. NBC News Digital features NBCNews.com, MSNBC.com, TODAY.com, Nightly News, Meet the Press, Dateline, and the existing apps and digital extensions of these respective properties. We deliver the best in breaking news, live video coverage, original journa...