Police in the US have released stunning footage of a hero cop running towards gunfire coming from a shopping centre and ultimately stopping the gunman responsible. The footage opens with a sweet interaction between a Texas cop talking to two young children and their mother, telling the kids to be good and wear their seatbelts. However, the scene soon turns dark, as the pop, pop, pop of gunfire is heard in the distance. The mum quickly scoops up her babies and whisks them to safety as the police officer enters hero mode. He pulls out his own weapon and ignoring...