This has been posted everywhere else. I'm sure it's the heat of the moment but it's interesting reading how Dana supposedly screwed him over behind the scenes.....
http://www.thesun.co.uk/sol/homepage/sport/ufc/2651057/Rampage-Jackson-quits-UFC.html
http://www.thesun.co.uk/sol/homepage/sport/ufc/2651057/Rampage-Jackson-quits-UFC.html