Shane kills Otis on Walking Dead
For those of you familiar with the Walking Dead, you probably remember this scene.
If not, here's the context:
A boy has been shot, and without medical treatment, will almost surely die. The two in this scene go to a nearby school to get medical supplies. At the point where this brief scene begins, both men have one bullet left, and their escape from the school looks certain. As you will see, Shane uses his last bullet to shoot Otis, thereby stalling the zombies as they feed on him. Meanwhile, Shane makes it out and the boy is saved.