It's sure looking like ol' Otzi was an outcast though.
One article I read points out that the arrow that bled him...somoene pulled out the shaft as there's no remaind of it while everything else was fairly well preserved. The coup de gras was a blunt force trauma to the back of the head.
So was he actually traveling with friends who tried to help him remove the arrow or was he a murder victim and the perpetrator didn't want to leave evidence and removed his arrow shaft? The latter could be also explained by the copper axe being left at the scene. Had tremendous value so why leave it? Except that it may implicate in his death. I'm sure a friend or fellow traveler would have taken it and anything else useful...of course don't know if they had some culture issues with dead people's property.
I'm fascinated with Otzi and often wonder what he would think of so much of today's interest in his life. What if someone discovers me in 5K years and spent so much time studying my pocket knife and multi tool...I'd tell them "hey, it's just a pocket knife and a tool...nothing special"