Pilot Les Abend: We have a murder investigation without a victim

Investigators are working to put together a better picture of what happened to Flight 370. So far, there is no sign of the plane and not enough hard information to eliminate many of the theories about what may have happened. Anderson took a look at the latest information with CNN aviation analysts Les Abend and Jim Tilmon, along with Ron Brown, an airline pilot with more than 30 years experience.