According to Above the Law, the prosecutor known for the "Broadview Six" case has left her position as an assistant U.S. attorney and is now set to appear as a star witness against her former boss. The report frames the move as "Goodbye AUSA, hello star witness."
The source does not provide further details about the nature of the case against the former supervisor or the timeline of the proceedings. It only notes that the prosecutor's return is in the context of testimony against her former superior.
Since this is a single source, there are no differing accounts to compare. The article's headline and brief text are the only basis for this report.