i want to talk to chris mckesson, a professor of naval architecture at the university of new orleans. so, professor mckesson, good to see you. this vessel is a pretty big one. 3 1/2 football fields long, one of the largest italian cruise ships ever built. surely it has the mapping and depth gauges that would be very sophisticated, right? >> yes, that's correct. she should have had the latest 2 21st century complement of navigation equipment on board. >> do you see this strictly as human error likely or could there have been an electrical problem on the ship and perhaps the crew was not able to rely on the gauges that usually allow them to get through rockier, shallow areas like this? >> well, of course, we don't have a complete picture of what took place, of course. so there is a lost speculation involved. it seems, my opinion, that is formulating as i'm watching the same news reports everybody else is, is that this really is a human failure as opposed to an engineering failure. it appears the mechanical systems of the ship did what they were supposed to do. the breakdown seems to hav

. >> chris mckesson thank you for joining us and sharing your expertise. >>> want to go to mississippi where haley barbour says he is at peace with his decision to pardon several convicted murderers. but he is taking criticism from every direction. martin savidge is in jackson for us. he talked with one of the convicted killers who is now >> reporter: jennifer mccray was murdered in 2001 by a man that ronald knew, her husband. >> we grew up together. >> really? >> we were good friends. >> reporter: anthony mccray shot his wife in a back in front of a room full of witnesses in this spot on the outskirts of town. >> he would have stood right here. >> reporter: mccray admitted the killing in court and the judge sentenced him to life in prison. on sunday haley barbour set mccray free after less than ten years. >> do you think he should have been let out? >> you kill somebody you need to do time. he took someone's life. >> reporter: mccray worked at the governor's mansion. the governor came to trust him. and this week, barbour pardoned him which means in the eyes of the law the murder never