Suburban mans death decades ago raises red flags, deserves closer look [Video]

Mary Ann Hayes was found dead in her north suburban home in 1996. Authorities determined that she died of a suicide. But a team of criminal justice experts is now pushing to reopen the case, claiming evidence shows she may have been killed.

Those same experts say hers is not the only suspicious suicide in the family.

Mary Ann’ son, Steven Altman, was found dead the morning of May 11, 1984.

Authorities said he hung himself from the boom of a forklift at his stepfather’s business on Chicago’s North Side. His death was ruled a suicide.

Steven, 21, had a history of depression and had spent time in a psychiatric institution. Chicago Police didn’t open an investigation and no autopsy was performed.

But now, experts are raising questions about his death.

Alliance for Hope International is an advocacy group that trains law enforcement throughout the U.S. to identify and investigate strangulation assaults and staged crime scenes. Dr. Bill Smock …