Boulder supermarket shooting suspect identified as 21-year-old man

Police tape around the car park outside the supermarket in Boulder, Colorado, where the shooting took place (AP/David Zalubowski)

Police have identified a 21-year-old man as the suspect in the killing of 10 people at a supermarket in Boulder, Colorado.

Authorities also identified nine victims after previously identifying a police officer who had been killed. Boulder Police Chief Maris Herold said the victims ranged in age from 20 to 65.