At least 10 people have been killed, including a police officer, in a shooting at a supermarket in the US city of Boulder, Colorado less than a week after eight people were shot dead in the US city of Atlanta. Police arrested Ahmad Al Aliwi Alissa, 21, of Arvada and charged him with 10 counts of first-degree murder, Boulder Police Chief Maris Harold said at a press conference. Alissa, who was shot in the leg, was in stable condition at an area hospital and was expected to be released later Tuesday, officials said. Boulder County District Attorney Michael Dougherty said...