DID DANCE FROLIC CAUSE NIGHTCLUB DISASTER?

Boston's mayor blamed a popular and heel-kicking dance - "The Charleston" - for triggering the catastrophic collapse of the Pickwick nightclub.

Forty-four people died when the floors of the Prohibition-era venue gave way.

Survivor Rocco Carparto - a professional singer known as ``Teddy Williams'' - watched the disaster unfold from inside.

"Just how it happened I don't know and I guess nobody does," Carparto recalled. "I made a jump for the stairway. But the stairway had dropped and I tumbled down."

Investigators determined chronic structural problems brought down the Pickwick - not the heel-kicking - in July 1925.