Mia Tretta, a prior school shooting survivor, was on Brown University's campus when a shooter opened fire Saturday leaving two dead and eight critically injured. "The whole thing felt so surreal. All day has been shocking, terrifying and confusing for me and the rest of the Brown community," Tretta tells NewsNation. #brownuniversity #schoolshooting #violence "NewsNation Prime" is America’s source for unbiased news offering a full range of perspectives from across the U.S. Weekends starting at 7p/6C. #Prime NewsNation is your source for fact-based, unbiased news for all Americans. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij