Denver officials said they are not aware of any threats made to President Barack Obama's campaign, but are exploring all possibilities as they investigate the shooting at his re-election headquarters.
Right now, no one is in custody and investigators are looking at surveillance video to see if a vehicle can be identified.
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An attorney and former prosecutor, Jones rallied voters on a message of moving past the Moore controversies.
The showers will be frequent, heavy and blustery with a mixture of rain and hail.
Facebook, Twitter and Google "are not simply platforms for the content that others post" because they play a role in shaping what users see.