Former judge Sam Amirante, who co-authored the book "Defending a Monster" about his work as John Wayne Gacy's defense attorney, reveals details from behind the scenes of the case, including sites in Des Plaines where Gacy carried out his horrible acts.

JOE LEWNARD | Staff Photographer

John Wayne Gacy drew this picture of his attorney, Sam Amirante, while he was being tried for killing 33 young boys and burying most of them in the crawl space of his Norwood Park Township home.

JOE LEWNARD | Staff Photographer

Danny Broderick listens to Sam Amirante, John Wayne Gacy's defense attorney, discuss the book they wrote together, "Defending a Monster."

JOE LEWNARD | Staff Photographer

Sam Amirante, John Wayne Gacy's defense attorney, discusses his book, "Defending a Monster," which he co-authored with Danny Broderick, left.

JOE LEWNARD | Staff Photographer

"Defending a Monster" by Judge Sam Amirante and Danny Broderick.

JOE LEWNARD | Staff Photographer

Danny Broderick, who co-authored "Defending a Monster" with John Wayne Gacy defense attorney Sam Amirante, points to an entry in Gacy's checkbook log.

JOE LEWNARD | Staff Photographer

Danny Broderick holds a suit which notorious killer John Wayne Gacy wore to court in 1980. One pocket of the suit still holds butterscotch candies. Broderick co-authored a book with Sam Amirante, John Wayne Gacy's defense attorney, entitled, "Defending a Monster."

JOE LEWNARD | Staff Photographer