The events mark the latest twists in an unfolding scandal involving a form of trading that takes advantage of delays in the ways funds are priced .
The charges would mark the latest effort to crack down on a form of trading that takes advantage of delays in the ways funds are priced .
Maddox , 87 , cracked two ribs when he fell about 10 days ago at an assisted living home where he was recovering from intestinal surgery , Virginia Carnes said .