Several bystanders near a Bronx gas station are being hailed as heroes after they helped thwart an attempted kidnapping of a 3yearold girl. Surveillance video shows the stranger coming toward the grandmother, who was walking home with the little girl and her young twin brothers from a nearby park. Suddenly, the man violently snatched the girl and ran in the other direction. The grandmother gave chase, and so did good Samaritans who heard her screams.