Quote Originally Posted by Munsu
Yeah, but I'm pretty sure that the Kazekage himself allied with Orochimaru and planned the invasion. Oro simply had some plans of his own, and double-crossed the Kazekage. I'm just looking at wikipedia, and surely seems that's the case.
lols...yeah....and I can think of some awesome examples of why wikipedia is a horrible, horrible source for Naruto information.

The manga never elaborated on Oro's assassination of the kazekage, except for Baki who says something like "Orochimaru....he's been leading us from the start!" Also, the body of the kazekage distinctly revealed that he had been lying dead and decaying in the desert for quite some time before it was found.