You'll notice that the man's last words were, if I heard correctly, "No, no, no, don't don't [come closer]. Look, it'll hurt someone. Just chill out, I-"
It's very clear to me that he died an honorable death. Remember, also, that he did this so that his wife would continue receiving benefits, as they would have been revoked had he been impeached. If he was truly innocent, I don't really blame him for doing it. If he wasn't innocent, I still don't blame him, though it cuts on the "honorable" bit a bit.
I feel as if this video hit me particularly hard today because of my current troubles (being screwed by, ironically, the court system myself just this very day). That said, this video has always been rather eye-opening to me. Between this and the suicide video of the Mexican man who killed himself while in custody, this sort of suicide is rather sickening, and extremely effective at showing just how fragile we are.
I've seen multiple death videos, usually as a sort of "train-wreck that you can't look away from once you see the start of it"-type thing. I've been close to puking several times, and I really don't see a single drop in disgust from my millions of video game kills.
Having also personally mercy-killed several animals, having my childhood dog die in my arms, and even saying goodbye to my best friend a mere hour before his heart finally gave out, I can attest that death is no trivial matter to me. I can joke about death all day long and enjoy the sickest of jokes, but at the end of the day, when it's time to get serious, I'm as cautious and caring as they come.
As a side note, I'm a large fan of firearms, and I liked that you noted that the standard person should be terrified of them. I agree to an extent: I enjoy firing guns and all, but I respect them just as much as I take pleasure in them. I would even say that I admire their strength, like a Jedi admires his blade. I understand their power and the fact that they could end a life in under a second, and, as most gun-owners will attest, this is a very shared feeling. Nearly anyone that has fired a gun before, I imagine, will say as much.