Minor Character Important Part

One of the minor characters in the story was Wilson, the husband of Myrtle the woman with whom Tom was having an affair. After Wilson's wife died by getting ran over he went and asked around about the people that had a yellow car and eventually, after talking to Tom, narrowed it down to Gastby. When he found out that it was Gastby that killed Myrtle though it was really Daisy, he took his gun and killed Gastby then shot himself.