And that's the problem here. You don't have enough evidence to judge. Nobody does, not on an internet messageboard. People who know the kids, other kids, witnesses, teachers...they can judge because they have more information. There's a minimum amount of evidence needed before any judgment can reasonably take place, and one film clip isn't enough.
This is a pretty major problem today. Soundbites. Film clips. Stick 'em on the air, and invite the viewer to "make their own judgments!" The viewers aren't qualified. The evidence isn't enough evidence (even if it's not selectively edited and selectively chosen to begin with) to make judgments, but the audience doesn't care. They feel smart because they made up their own minds! "I haven't been manipulated, because I saw the clip!" So not only is a rush to judgment made on incomplete, possibly improper, possibly irrelevant evidence, but everyone feels very certain because hey, it was based on evidence.