Batgirl #55

Batgirl saves a four-year-old boy from a mob hit, alerting Oracle to the fact that innocents have now become targets in the gang war which is sweeping the city. They then get word that a number of children are being held hostage at Louis E. Grieve Memorial High, Tim Drake's school. On the way there, Batgirl encounters Spoiler, who is out on the streets doing her best to help. She tells the younger hero to stay off the streets and makes her way to the school, hitching a ride from a television news helicopter. Once there, she and all the bystanders hear a single gunshot.