A group of four young men , who appear to be students , walk away from a bus stop in a school zone .
It is impossible that a group of four young men arrive for their first day of school .
It is impossible that a group of four young men arrive for their first day of school .
There is a better than even chance that a group of four young men arrive for their first day of school .
A group of four young men arrive for their first day of school .