Definition: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: Kevin was walking down the street. Sentence 2: He saw a car run a stop sign. Sentence 3: The car hit a van. Sentence 4: Kevin ran over to the scene. Sentence 5: He helped the victims at the scene.

Witness