A teen girl was gunned down and killed during a robbery while working her shift at a Harlem Burger King - with the killer making off with only $100. Kristal Bayron-Nieves, 19, was working as a cashier at the Burger King at 116th Street and Lexington Avenue in East Harlem around early Sunday morning when an armed robber entered the restaurant at around 1am. The gunman pistol-whipped a male customer before punching a female manager in the face. Bayron-Nieves, who just started the job three weeks ago, gave the robber $100 cash from the drawer, an eyewitness said, according to...