While walking in the schoolyard, a 9-year-old girl was shot to death by her classmate. The teacher caught the little killer when he tried to throw the pistol into the trash can. The boy's parents are law-abiding citizens; there were never any weapons in their house. Where did the child get the gun from? Investigators questioned everyone at the school, but to no avail. The killer boy himself flatly refuses to tell where he got this dangerous "toy".