>> martha: active manhunt underway for this man sitting this video posted on facebook moments before he gunned out an elderly man and broadcasted on the internet. if mike tobin joins us from chicago. >> police say there is no doubt that steve stephens' arm. he should be considered dangerous. their ward is up to $50,000. this search area is the entire nation. it has been more than 24 hours and an end said that video was posted to facebook come appearing to steve stephens appear to kill a man in cold blood. he left in a white 2016 ford fusion. police are imploring him to turn himself in. >> steve, if you are out there listening, call someone, whether it is a friend or family member, or pastor. give them a call, they are waiting on you to call them. >> the victim, 74-year-old