MARIO was not a culprit. Is a homosexual at fault when homophobes beat the crap out of them in Russia? NO! Mario is no culprit. he is allowed to tweet whatever the hell he wants about united and should not suffer RACIAL slurs as a result. People can give it to him all they want, but not on the basis of his skin colour. Simple really.
Allow to tweet whatever he wants? Ok, thats fine. Then by that logic, those morons are allowed to tweet whatever they want as well are they not? However ignorant it may be...