If he left with short notice with multi-entry visa, it would cost him $5,700 RT and he still would have been denied entry with a one way ticket. Where did he get the money?
Put yourself, if you can, into the shoes of someone panicked at the prospect of a gory death from ebola. There’s a country touting ability to successfully treat it, you have family there. Would you sell everything you had, lie, beg, borrow or steal to get on a flight to that country in order to live? I’m not saying it’s right because it’s not. This man is going to end up killing many other people, imho, and deserves punishment provided he survives. But, clear thinking in the face of such a thing is not a safe reaction to assume. And, not everyone is moral and concerned about their fellow man. Human beings are largely self-centered. There doesn’t have to be some sort of plot.