Hi Caitlin, saddening to hear you feel bad about this, but look at is this way; the guy is one of those wirdos who posts threats on Favebook. This means he is almost certainly an obese, pimply nerd who has neither (a) left the computer setup in his basement (b) changed his underwear for several years.
That being the case his body odour is going to be the most dangerous thing about him.
Think of the Monty Python sketch about crime bosses Dinsdale and Dougie,the Pirhana Brothers. Dinsdale Piranha, the psychopath, bent people to his by threatening to nail a coffee table to their heads, but Dougie was the one who struck fear into even the hardest of hard men because he used sarcasm.
Go for it.