Vigil held for 15-year-old killed in Manhattan crash; NYC high alert ahead of UN General Assembly

Mourners gather at an East Village vigil for 15-year-old Daria Serkov, who was tragically killed in a bike crash with a commercial truck; plus, New York City prepares for high security, major street closures, and severe Gridlock Alert Days as world leaders arrive for the 81st UN General Assembly.