Read MoreNew messages suggest the 20-year-old gunman was on the radar of law enforcement earlier than thought.New messages suggest the 20-year-old gunman was on the radar of law enforcement earlier than thought.
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Read MoreNew messages suggest the 20-year-old gunman was on the radar of law enforcement earlier than thought.New messages suggest the 20-year-old gunman was on the radar of law enforcement earlier than thought.