Jay ran away from home and met the drunk Dan Cody, and Gatsby saved his life from hitting the rocks while he was on his boat. Dan Cody taught Gatsby everything he knew. Dan Cody always drank alcohol, and Gatsby saw how it affected Dan Cody, so he never drank alcohol again after being with him. Then Gatsby got rich very quickly and no one knew how he got all his money. There were some rumors about how he became rich, but no one knew the facts about Gatsby. People said he was a smuggler and killed a man. There were many unfair assumptions about Gatsby, and they weren't all of them