Gene Gavin, also known as The Major, is an antagonist in the novel The Walking Dead: Rise of the Governor. He is a national guardsmen and the former leader of Woodbury prior to the Governor's leadership.
The Walking Dead: Rise of the Governor
Gene Gavin was the leader of Woodbury when Philip's group arrive.
After the deaths of Philip Blake, Nick Parsons and Ms. Bridges, the townspeople confronted Gavin and his men about the people disappearing. Gavin threatens them and kills one of the townspeople named Detroit.
Brian sees this and shoots Gavin in the head, killing him.