NFL gave Vilma a sworn affidavit from Gregg Williams stating Vilma offered $10k to knock out Favre

Have Vilma show his edited bank account statements for the time in question. If there is a withdrawl or other transaction around the 2010 NFC Championship, then that is pretty solid circumstantial evidence to back up the claim. If not, then it works for Vilma.

I agree. This^^^^^ would certainly clear Vilma if no large sum of money is withdrawn or no cash advances on any of his credit card accounts then that should pretty much shoot down GW's claim.