Madigan. Marquez is one of two key cooperators in the racketeering conspiracy case against Madigan and his longtime ally, Michael McClain. His recordings and testimony formed the backbone of last year’s ComEd bribery trial, in which McClain and three ...

The former ComEd vice president who secretly recorded his colleagues as part of a federal corruption probe began testifying against ex-House Speaker Michael Madigan on Tuesday, the first of what is expected to be multiple days on the stand.

A key witness in the ComEd Four bribery case last year has taken the stand at the corruption trial of former Illinois House Speaker Michael Madigan. Former ComEd executive Fidel Marquez said he worked for the utility company for about 37 years.

Jurors in Mike Madigan’s corruption trial heard testimony from former ComEd Vice President Fidel Marquez Tuesday. Marquez began cooperating with the FBI five years ago after pleading guilty to conspiracy to commit bribery.