Alyssa Elsman died Thursday when a man drove his car down the sidewalk for three blocks into the heart of New York City's theater district.
Twenty-three people were struck by the car before it was stopped by a security barrier.
Police say Elsman's 13-year-old sister was among the people who were struck but survived.
Police identify the driver of the car as Richard Rojas, a Navy veteran from the Bronx. They say he was captured at the scene and arrested. He's in custody. (AP)