Who was John Wayne Gacy Gacy is one of American most infamous, and prolific, serial killers and sexual offenders. He was been convicted of the murder and assault of an estimated 33 young men and boys.

Ghost Adventures host Zak Bagans recently purchased a bunch of serial killer John Wayne Gacy's personal belongings, including the infamous self-portrait of the murderer dressed as "Pogo" the clown.

A well-known criminal profiler is sharing the bizarre demands that made him stop trying to interview infamous serial killer John Wayne ... personas “Pogo” and “Patches.” Gacy sometimes ...

Famed serial killer John Wayne Gacy's creepy clown ... form tobacco jar that sold for $500. But Gacy’s creepy clown self-portrait, called "Pogo the Clown," fetched one of the higher-end ...

But real ones DO exist, as the case of John Wayne Gacy shows. Gacy was a serial killer ... the Killer Clown before his sideline dressing as Pogo the Clown at kids’ parties, fundraisers and ...

But the costumes he used to transform into Pogo and Patches the clowns, instead ended up becoming a money-maker for someone. "They've called me killer clown," said John Wayne Gacy during an ...