A homeless man who spotted the Brown University suspect two hours before the shooting was seen on surveillance footage following the individual before confronting him on his suspicious behavior. #foxnews #news #us #fox #crime #brownuniversity #shooting #investigation Subscribe to Fox News: https://bit.ly/2vBUvAS Watch more Fox News Video: http://video.foxnews.com Watch Fox News Channel Live: http://www.foxnewsgo.com/ Download the Fox News app: https://foxnews.onelink.me/xLDS/cd5yhg3o Become a