United States v. Falcone (1940

In the case United States v. Falcone (1940), the defendants sold yeast and sugar to a man who was making illegal alcohol. The evidence showed that defendants knew that their products were being used for illegal purposes. What was the Supreme Court’s decision regarding the existence of a conspiracy. What was the Court’s reasoning? What if a gun dealer sells guns to a person he knows will use them to commit crimes?