I think my human guild representative starved himself to death.

I'm sort of new to DF, (started playing after reading about it on Reddit). Is it possible for a guild representative to starve themselves to death? and if so, what sort of consequences will I face?

I ask because I was looking around my fortress today only to find the corpse of my human guild representative who arrived a season or two ago. My fortress doesn't have any real dangers so I don't think he was killed and I found his corpse sitting in the middle of my main walkway where dwarves are rushing past all the time so I'm sure I would have noticed if something murdered him. The only thing I can think of is that he spent so long trying to get to talk to my leader that he eventually starved to death.