Photo: Getty Images At least 10 people were killed at a grocery store in Buffalo, New York on Saturday (May 14) after a man carrying a rifle entered and opened fire, law enforcement sources reported. The armed gunman entered the Tops Friendly Market located on Jefferson Avenue just after 2:30 p.m. and shot at least ten people, police sources told NBC News . According to multiple reports, the suspect was livestreaming the shooting on social media . Officers responding to the shooting arrested the suspect at the scene, police sources said after stating the gunman was killed. Sources revealed the...