Strange Man

People were talked about all the rumors about Gatsby in chapter 3. In chapter 4 there was clue about the rumors about Gatsby. While Gatsby and Nick were walking the street they met a man called Mr.Wolfsheim. He seems like a gangster and he was a gambler and also Gatsby's business connection. Mr Wolfsheim said "I understand you're looking for a business gonnegtion." (p.70) and Gatsby was stunned and said to him Nick is not finding business connections. Gatsby said that he got money from his parent after the war but I think he got that money from inappropriate way. Mr.Wolfsheim kept try to get Nick in his business. That makes me more suspicious about Gatsby. Why Gatsby working with man who policeman try to arrest? Where Gatsby got money form? Which fact that Gatsby told is true and which is false? I hope find another clue about Gatsby next chapter.