Well, that's yet another death threat chalked up for me this week. I say this casually because humor helps me cope, but I'm actually pretty freaked out.
I sent a copy to the dude's employer and posted it to some relevant college sites.
I'm really disappointed in the mutual friend who tried to minimize the behavior, "100% he was wrong to do that, but also can you take it down he's freaking out and also he's just dumb he didn't mean it."
Actions have consequences.