The unfolding drama over Brooke Astor's fortune took another turn Wednesday, as Anthony Marshall, Astor's son, took a spill in a courthouse bathroom. Marshall, who is accused of duping his senile mother into leaving much of her fortune to him, reportedly became lightheaded and hit his head in a stall. He was rushed from the courthouse. He appeared alert, though he was on a stretcher and had an oxygen mask over his mouth. Marshall's health problems have stalled the juicy trial several times. He suffered a minor stroke last month, and two weeks ago suffered a concussion after a slip on his treadmill, the Daily News reports.