less than a month after his death the new york city medical examiner made the official ruling. the cause of death compression of neck, a choke hold. plus compression of chest and prone positioning during physical restraint by police. his death was ruled a homicide. complicating matters, the m.e. also found asthma, obesity and cardio v cardiovascular disease were contributing factors. the city erupted in protests. >> we came out to give support and show the family of eric garner we are here and feel for him. >> reporter: new york city's mayor called it a tragedy promising a full review. the police commissioner promised to get to the bottom of it. >> defined in the department's patrol guide that this would appear to have been a choke hold. >> reporter: a grand jury was convened to decide whether or not the officer should be indicted. it began hearing testimony back in september. >> i just want them to do the right thing and give me justice for my husband. >> reporter: the jury is