It was only last week that Federal prosecutors charged a second man in the case.
Lawyers watching the case had said more than a year ago that prosecutors might have charged the son in part to pressure the father.
Prosecutors later charged three members of the Council with corruption in two cases.
Prosecutors charged that the scheme had been in operation since early 1995.
Prosecutors to recommend against prison for woman charged in daughter's shooting.
On 24 May 2011 prosecutors charged her in connection with this (third criminal) case.
Prosecutors eventually charged him with at least 27 murders for profit.
It is unknown whether prosecutors will charge anyone in the Bush administration with wrongdoing.
Last summer, federal and state prosecutors charged a number of surgery center owners with fraud.