A boy fishing in a northern Illinois lake hooked—and then lost—what he thought was a human foot, but a search determined the appendage had belonged to a mannequin. Divers and sonar teams spent nearly 10 hours searching Lake Marie, near Antioch, before they located the fake foot last night. Authorities say the boy reeled the foot to within three feet of his boat before it fell back into the murky water. (More Illinois stories.)