after manafort's former business partner rick gates pleaded guilty to criminal charges and agreed to cooperate with mueller's investigation. manafort says he's innocent. but it's hard to square that with gates' guilty plea. the stakes are getting higher every day. what does mueller want from manafort and where will it lead? outrage tonight as we're learning that authorities at every single level failed the students and teachers at stoneman douglas high school. repeatedly missing chances to stop the shooter who gunned down 17 people. an unidentified woman who called the fbi tip line on january 5th said nicholas cruz was, going to explo explode. she said she feared him, quote, getting into a school and just shooting the place up. her chilling conclusion, quote, i just want to get it off my chest in case something does happen and i do believe something is going to happen. and what happened after this graphic warning?