Everyone who's asking "if the finger of suspicion has been over him for so long, why is the hammer falling now?" it's because he's stopped contesting it. I suspect he's stopped because he can't win. He's saying it's because he's tired of fighting it but if you have the reputation and adulation he has, you would fight till your last breath to defend it. Goodness knows he has legions of supporters who would back him all the way. He's in a corner and the only way he can escape with a shred of dignity is to say "you have sapped my will to fight, I don't care any more". Considering his motto could be "against all odds" this is an uncharateristically pusillanimous decision. In other words, shyeah right.
Not only that, if he fights it and loses, he'd have to pay back at least some of his winnings. By walking away, he doesn't take that risk.