Questions surround the 1996 death of a suburban mother

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Media Conglomerate: Nexstar Media Group

Media Conglomerate: Tribune Media

Questions surround the 1996 death of a suburban mother

Mary Ann Hayes was found dead in her suburban Northfield home in 1996. Authorities ruled her death a suicide. But now, more than two decades later, a team of criminal justice experts is pushing to reopen the case. They believe someone killed Hayes and staged it to look a suicide. “There was just nothing in this case at any point as we went along where we said, ‘Yeah, that does raise questions. Maybe, it is a suicide,’” said Casey Gwinn, former S…