Ok, let's assume that the following scenario is actually possible, I would like to know how you feel when all these things happen at the same time:
Bitcoin is under a 66% attack (double spends are happening)
Is also banned by the US, Russian, EU and China government by threat of 30 years jail time.
The real satoshi (proven by something) is found dead, killed.
I am a big bitcoin fan, but under the scenario you have described bitcoin has lost a lot of its appeal, as has living in the US and EU. I don't think poor satoshi's demise is much of an issue, unless his heirs are going to spend his 1M coins!