So what is the liability of someone in the USA investing in an "extrajursidictional company"? The parent is doing an ICO for an escort service, if I was to sa

So what is the liability of someone in the USA investing in an "extrajursidictional company"? The parent is doing an ICO for an escort service, if I was to say do an ICO for an assassination service would the people who invested be in anyway liable? Is it legal to raise funds for an expressly illegal purpose?