Key witness in Wrigley rooftop trial grilled on the stand

As soon as the calm and poised federal prosecutor finished asking Richard Zasiebida several questions Wednesday about the Wrigleyville rooftop business known as Skybox on Sheffield, defense attorney Chris Gair leapt from his seat in the courtroom.

Gair told Zasiebida he would "start with something easy."

But then the defense attorney for former Skybox owner Marc Hamid launched into a devastating hours-long takedown of the key government witness in Hamid's trial at the Dirksen Federal Courthouse.

Under Gair's blistering cross-examination, Zasiebida admitted that he smoked marijuana daily for years while working at the rooftop and also succumbed to a cocaine addiction. He said his drug use is over, but it was once "more than recreational" and sometimes took place while he was working.

For the full story, click here.