I've seen what they did to McAfee. His crime was avoiding his taxes. He got pwned in Spain. Died in a cell.
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There were other examples too. Another one was the owner of btc-e. He got pwned in Greece... by the FEDs. How is that possible?
I don't know who the other guy you mentioned is, but McAfee was certainly a much bigger player than OP is. The person that "had an accident" in Greece was of a similar caliber probably. McAfee kept running his mouth against the government, kept criticizing. Wasn't there a time when he was considering running for president and he promised to make crypto an integral part of his campaign? He was a very controversial character indeed.