I doubt very much justice will be done, unless Edith O'Brien cuts a deal for immunity and has some proof of what was said and known by the executives of MF Global.
The foundations for the cover stories have been well laid already in the press.
"As it was in the days of Noah, so shall it be with the coming of the Son of man. In the days before the flood, they were eating and drinking, marrying and being given in marriage, even to that very day in which Noah entered into the ark. They did not know what was happening, even as the flood came and swept them all away." Matthew 24:37-39