PITTSBURGH - When a 6-inch-thick section of concrete flooring in a second-floor area of the David L. Lawrence Convention Center collapsed Monday, it sent steel, debris and equipment crashing 30 feet onto a walkway and decorative waterway below. As architects and engineers examine the debris to determine the cause of the collapse, signs are pointing to Steelers' nose tackle Casey Hampton. A crew supervisor working on the upcoming Auto Show said, "Casey Hampton had just walked through there, munching on what appeared to be a mastodon leg, and then the cracking and crumbling started." Hampton was at the Convention Center to test a reinforced platform where he is scheduled to sign autographs during the Auto Show next week.Preliminary recommendations from city engineers are for the damaged sections to be replaced with high strength, pre-engineered panels and for autograph sessions to be limited to wide receivers and kickers.
