JSON Baumgartner on Twitter: "These are the top 50 verified Twitter news sources that tweeted about an active shooter since January 1, 2011. These are tweets that contained the phrase "active shooter" within them. #dataviz #bigdata https://t.co/gx4fUh19X6" / Twitter

These are the top 50 verified Twitter news sources that tweeted about an active shooter since January 1, 2011. These are tweets that contained the phrase "active shooter" within them. #dataviz #bigdata