Rezko's possible change of heart—after years of steadfast refusal—has sent ripples through a tight circle of prominent defense attorneys who represent dozens of potential witnesses and targets in the wide-ranging probe.
His cooperation would give prosecutors investigating the governor and his wife access to someone they have described as an ultimate political insider at the center of a pervasive pay-to-play scheme.
Rezko's trial this year laid bare a culture of scams, bribes and backroom deals stretching from City Hall to the Statehouse. It even became fodder in the presidential campaign of Democratic nominee Barack Obama, whose fundraising and personal ties to Rezko go back more than a decade. ....
