The American Civil Liberties Union of Minnesota is deciding whether to help investigate the case of a Duluth man who died after a confrontation with police. 29-year-old David Croud died Tuesday. He went into a coma after he was arrested and never regained consciousness. Witnesses said police slammed Croud's face against a stone walltwice during an arrest outside the Fond du Lac Casino in downtown Duluth. Police said that Croud was drunk and had been harassing customers, and that he became "belligerent" as they attempted to handcuff him. ACLU executive director Chuck Samuelson says it's a difficult case to figure out.