West Virginia Governor Jim Justice signed a bill into law that allows those with concealed carry permits to take firearms onto public college and university campuses. A Chicago police officer was killed Wednesday in a gunfire exchange, allegedly with a man who was arrested in connection to a shooting last year. Family members in Greece lined up to give DNA samples in hopes of identifying victims of a train crash that killed nearly 60 people there. Tesla says it will cut the cost of its next generation of vehicles by half largely by using innovative manufacturing techniques and smaller factories.