But thanks for proving my point: he was there to score emotional points and shame the pro-gun side into capitulating to his argument. That's an exceedingly cheap and dishonest tactic, and shame on whatever jerk it was that put this poor guy up to it.

Some idiot just put a bullet through the brain of his child. What makes you think that his testimony wasn't heartfelt? Other than your ideological bias that sees anyone who disagrees with you as dishonest and a liar, of course?