SPRINGFIELD — In a negligence case before the Illinois Supreme Court this week, the Illinois Trial Lawyers Association has filed a brief supporting the plaintiff’s argument that a fraternity can be held civilly liable for a fatal hazing incident.Colin H. Dunn, an association member who authored the friend of the court brief, said the group’s involvement in this case is to try to ensure that victims of hazing have a legal recourse.“We are really trying to protect the rights of future families whose …