completely unfounded and unfair. i believe any question to my innocence must be examined by an objective investigation and a capable prosecution." you will remember, knox spent four years in prison in 2011, before her murder conviction was overturned. she is not expected to travel italy for the trial. other news as well. >> the lost week of spring. the powerful snowstorm has moved out. but many parts of the country are facing another cold day. people from the midwest eastward are dealing with snow, slush, ice from yesterday. and parts of the south woke up to freezing temperatures. new developments from the deadly gas explosion in kansas city. six employees have filed a lawsuit. a gas company and contracting company are two of the defendants. the contractor laying fiber optic cable when a worker hit a gas line. the explosion came an hour later. more than a dozen people hurt. an extreme stunt cost a man