Forum:Terra is not Xehanort

Yumekai627: Terra can't be Xehanort? at least evidence doesn't support this, we have to remember that Sora's nobody Roxas can use the keyblade, because Sora can use the keyblade and if Terra was Xehanort then Xemnas would be able to use the keyblade right? This could only be disproved if it is possible to lose the heart to wield the keyblade. Can anyone prove or disprove that Terra is Xehanort?