100 bucks says its a speeding, failure to yield, or failure to stop of some kind.
Let's line up the facts, young guy,
cutting through a neighborhood to avoid a school zone. Doesn't matter how good the kid is, the vast majority of people speed over posted speed limits in neighborhoods and roll through stop signs, especially if they know the area. For example, the speed limit on my street growing up was 25mph. I don't think I've ever gone that slow in the last 15 years, and I drive carefully generally, but more likely I'm going 35-40.
I bet you anything he made the turn into the neighborhood quickly, doing something to attrack the cops interest. My feeling here is his mistake is being oblivious to the cop car following him in the first place when he went into the neighborhood, then commiting a common traffic violation.
No we have a convenient blameless story for the benefit of friends and family, how thoughtful of him.
