'I couldn't help anybody': customer describes escape from Colorado shooting – video

A shooting at a supermarket in Boulder, Colorado, has left 10 people dead, including one police officer. One witness, Sarah Moonshadow, said she and her son were at the checkout when she heard multiple gunshots. The two ducked for cover and then started running to leave the store. The shaken customer said she took shelter behind a building, but her dog was still at the grocery store

• Colorado shooting: 10 killed, including police officer, at Boulder supermarket
• 'I couldn't help anybody': Colorado witnesses describe terror as shots rang out