It is not Karpeles fault that a criminal is trying to sell your data. The perpetrators of crime are the criminals, and in this case MtGox & its customers are the victims. In fact, if someone hadn't been defrauding them via the malleability exploit, we wouldn't be in this situation.
So, how about we start actually blaming this fiasco on the perpetrators rather than the victims.
Don't tell us you believe that smokescreen on malleability? His testimony makes no sense.