Former nurse Dorothy The Cook County Medical Examiner 's , 98 , died of a morphine overdose in February . Mrs The Cook County Medical Examiner 's 's daughter visited her mother on the day before she was taken ill. An initial post mortem was inconclusive but further tests found evidence . A nurse and two healthcare assistants have been suspended by the home . Byrd office found evidence of homicide .
Former nurse Dorothy Byrd , 98 , died of a morphine overdose in February . Mrs Byrd 's daughter visited her mother on the day before she was taken ill. An initial post mortem was inconclusive but further tests found evidence . A nurse and two healthcare assistants have been suspended by the home . The Cook County Medical Examiner 's office found evidence of homicide .