I've watched thousands of 40 yard dashes and it is only a guess based on that. It's not that the athletes exaggerate or lie, it's that stopwatch timing is extremely inaccurate, it just is. And like I said, he didn't even have a start horn or anything. The kid might well be fast and a good football player but I'd put 100 down right now that he doesn't time under 4.4 laser.
I realize you're from right down the road and feel the need to defend this kid, but there's no need. Nobody is questioning his talent or calling him a liar. But the method of timing that 40 is not accurate, and that's just a fact. Sorry.