chicago with more on this story. reporter: jenna, the latest push from chicago leaders is interesting because it deals strictly illegal weapons. what chicago leaders want is minimum mandatory sentence for illegal possession. those are the guns used on chicago s mean streets where violence is a part of almost every night. city leaders want 3 1/2 years for possession of an illegal gun. also truth in sentencing laws which would guaranty a convict won t get back on the street after doing just a fraction of his time. when you commit a serious gun offense you should serve the time. the victims deserve it, the public demands it, and the criminal justice system should deliver it. reporter: here is where it gets difficult. convicts stay in state prisons which are overcrowded. they re so overcrowded six illinois prisons have prisoners bunking in the gym. guards are complaining now that they are at risk because they are so understaffed, and