Okay this is just getting silly. The behavior of Mt Gox here is completely unprofessional. If you suspect that Kevin is the hacker/worked with the hacker then you go the legal route. Trying to slander him on a forum isn't the right way to go.
The sad part here is that you already know this and the reason you slander Kevin on the boards is that you hope that if people get someone to blame for this they'll forget that this is all Mt Gox fault. You're making Kevin a scapegoat and hope that people will keep trading on Mt Gox when this thing is over and you can open up trading again. I really hope people aren't falling for it.
Mt Gox weren't ready to go from trading cards to actually currencies and the whole clusterfuck that has been their handling of this case has proven that beyond reasonable doubt. For the record I think the lack of security measures was enough to leave mt gox, the rest is just icing on the cake.