[relee]

"An amateur who doesn't know how to compensate his point of aim for the glass will very likely blow the shot unless he gets lucky"

Maybe his target was outside the store and the (lucky) target moved.

[mhking]

Maybe his target was outside the store and the (lucky) target moved.

Now that's a heck of a point - it would make more sense, and fit within the pattern overall...

[Route66]

'Maybe his target was outside the store and the (lucky) target moved.'

That would be my bet, too.
Also, doesn't it seem he is now making a point of playing to our fears?
The first day the news made a big deal about locking down the kids at school and the safety of the kids. First thing Monday morning, he targets a child going to school. He's playing with everyone here. He's trying to show us he is our worse nightmare.

[Wingsofgold]

Those were my thoughts about that. I think the kid today made an unexpected move too, that probably saved his life. That and the quick actions of his Guardian.

[cake_crumb]

"Maybe his target was outside the store and the (lucky) target moved."

Temporarily lucky target, IIRC...but good possibility.