Wow. There's a reason I avoid 'retreats' like the plague. I always make up an excuse.

I once had a boss threaten to fire me if I didn't go out with everyone after work. So I did. When I refused to get drunk with them and only drank water she eventually relented and didn't make me go out with them. I didn't last too long at that job. Most of the other places with crap like that just figured I was 'shy' and let me be. I'm not. I just don't want to hang out with coworkers outside of work. And I hate large groups.

While this guy must have been disliked by everyone that is no excuse to put his life in danger. I think that the OP is correct on both counts. It was a whole mess of shitty people ganging up on what is probably a very socially awkward individual...

Black clad emo boy full of soy and sorrow. If Sarah from accounting mistreats you, And the stone cold mountain defeats you Will you show your face at work tomorrow?

I would like to take "How to tell if you are hated at the office for $100 please"

An "office retreat" where the team building exercise went very wrong.