What happened in the Aurora shooting, and what's next
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Melissa Harris-Perry runs through the latest developments with the gunman who killed 12 and injured over 50 movie-goers during a midnight showing of “The Dark Knight Rises” in Aurora, Colorado. MSNBC host Chris Jansing, NBC News’ Michael Isikoff, and Colorado Rep. Rhonda Fields contribute to the update.July 21, 2012
