The FBI has joined an investigation into the death of 28 year old. Sandra Bland, after a Texas county medical examiner’s office ruled her death was suicide by asphyxiation. The Chicago native was found dead in her jail cell Monday morning. Bland was arrested on charges of assaulting a police officer after a heated exchange during a simple traffic stop. Friends and family don’t believe Bland would kill herself, as she was expected to post bond on Saturday.