- ‘It was a truly horrifying experience’: Witnesses describe active shooter scene inside Boulder King SoopersThe Denver Channel
- ‘Sad day for Boulder’: Gunman kills 10 at Colorado supermarket, including police officer, in second US mass shooting in a weekYahoo! Voices
- Multiple dead in shooting at Colorado supermarketCNN
- ‘Enough Is Enough’: Colorado Leaders Share Condolences & Anger Following King Soopers ShootingCBS Denver
- Supermarket shooting in Boulder, Colorado, leaves several dead including officer – as it happenedThe Guardian
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