Survivors recount helping others escape tornado rubble: "I wasn't going to leave them behind"

More than 100 workers at the Mayfield Consumer Products factory, in Mayfield, Kentucky, were making candles when a tornado tore through the building Friday night. It was part of one of the most devastating tornado outbreaks in U.S. history.

Workers say they were told to huddle in a hallway, which was the strongest part of the building, as the storm approached. They watched as the roof peeled away and the walls caved in. The company told CBS News at least eight of them were killed, and six other workers are still missing.

Workers told "CBS Mornings" lead national correspondent David Begnaud how they managed to survive being pinned underneath the collapsed building, and about their "hero" colleagues who pulled one another out of the rubble.