ok but as a matter of principal losing investor money as a result of fraudulent behavior could in theory be a form of murder. many of those people might have lived quite a bit longer had they been able to afford medical treatments that they now can no longer afford, or healthier organic food that they now can no longer afford ect... not defending bitthink I just wanted to point that out.
You trust your money to someone? You cannot use violence against him because he lost it. Even if he told you lies. The initiation of the use of violence is wrong, unless self defense.
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You as an individual should not initiate violence. But if what he did was illegal, he should face the legal penalty.