I wouldnt say it was SAD, from what i can gather it was done by some other wrestlers to get revenge or something, but if wrestlers did it then it MUST be real!
It's a stunt but a bit extreme if you ask me. It's all very well killing people off in Soap's cos the whole thing is fake but apparently people have been calling the FBI and everything about this one!
I remember a good few years ago McMahon's wife was struck into a waking coma for weeks (not from watching Hulk Hogan's tv career collapse), until at one of the major events she mysteriously stood from her wheelchair and clobbered her husband, the McMahoniac, whose faces remained in shock for moments. Brilliant days of drama, revenge, familial betrayal and onscreen emotional hangings.
I somehow doubt wwe.com to be an accurate news provider, a bit like Fox, so my guess is that McMahon sadly lives on. Although, the Undertaker has died now on about eleventeen occasions before justice returns his body to us all for just one more battle, so who knows for sure what's happened.