A young man's disappearance leads police to Gacy's home, where his horrifying crimes are discovered.
An examination of Gacy's past reveals evidence that authorities knew he was a sexual predator.
Gacy details his murders in a chilling confession as police uncover the scope of his crimes.
The jury must decide between sending Gacy to a psychiatric facility or condemning him to a death sentence.
A quick verdict doesn't end the story; the specter of more victims has investigators digging again.
Questions about the Gacy case linger 40 years later, as does the fallout from his terrible crimes.
