Metropolis, 1959.

Supergirl is on top of a building, observing the city and its people with curiosity. She sees a person playing a sport unknown to her, on a separate court. Supergirl walks over there slowly, not wanting to intrude, but a young man walks over there with a medium-sized gun, and Supergirl goes over there quickly. After immobilizing what appeared to be a school sh00ter, she decides to leave, but the person she saw interacts with her.

Yes?