What If The 'murder Wrap' That Dallass Mentioned In The Movie Had Something To Do With Him, I Feel That

what if the 'murder wrap' that Dallass mentioned in the movie had something to do with him, i feel that one day when he let a guy really have it in a fight he went to far and messed up the guy so badly he died from just how badly Dal had beat him, maybe the cops never got involved but he left because the guilt never left his mind. Maybe that's why he lets Tim mess him up so much in their fights, he feels as if it's fair