The weirdest death sequence I've experienced was this - about Nov2003 timeframe:
A lvl 50 kicker and my lvl 50 enchantress were questing through NM, we did act 2, 3, and were in the middle of 4 doing izzy when a really bad pack of gloam-thingys killed the kicker. He asked me if I was able to loot his body, and they had almost killed me too, so I said "no guarantees" but I would try.
After trying unsuccessfully to clear the way to his body (and almost dying a few times) a lvl 70 necro comes in and I asked if he could help retrieve body, so I could loot. He said sure, and came out, and cleared everything. Then, while I'm standing there trying to loot, he goes off to kill more dudes, only the weird thing is, his bone-spirits are coming my way. I bet you can see where this ends. He TPPK's and my body winds up on top of the other guy.
Then, a lvl 60-ish hammerdin who had also joined about the time of the necro, decides to duel the necro, and I watch from my deeds screen. The pally gets the necro to 1/2 life a few times (and visa-versa) but eventually the necro wins and the pally dies.
3 players dead, one from PvM, one from TPPK, and one from PvP, all in the same screen.
Unfortunately for me, this was one of the first TPPK necros in season 1. But thankfully I've never lost a char to anyone else because of it.