E! Online wrote:


The suit, filed on Tuesday by Illinois Attorney General Lisa Madigan, claims that a bus rented by the usually eco-friendly group was traveling cross town to the band's hotel on Aug. 8 when it pulled up alongside a metal grating on the Kinzie Street Bridge. That's when, the suit claims, bus driver Stefan A. Wohl emptied the contents of the vehicle's septic tank into the river.


And that was bad news for Chicago's First Lady, a passing tour boat filled with 100 people on an architecture sightseeing cruise that was doused by the falling excrement.