Dave Matthews Band

I guess it was Dave Matthews!
In a post I made on August 9th It was believed that the tour bus belonging to the Dave Matthews Band had dumped smelly sewage onto unsuspecting tourist. Now the City of Chicago is taking action:

CHICAGO, Illinois (AP) -- The state of Illinois sued the Dave Matthews Band on Tuesday for allegedly dumping up to 800 pounds of liquid human waste from a bus into the Chicago River, dousing a tour boat filled with passengers.
courtesy of: cnn.com