John Wayne Gacy
publication date: Monday, October 31, 2016 (part of Fall 2016)
clue: You think clowns hiding in the woods are scary? This one was a real danger to teenaged boys in Chicago in the 1970s.
trivia: Scott originally set out to make a Halloween 2016 goo. As scary clown sightings were a major trend in 2016, he wanted to make a goo tied into them, but there were far too many arrestees and witnesses with no central figure in the trend, so Scott went with a different "scary clown" for the goo. He still scheduled it for publication on Halloween anyway, despite it having little connection to the holiday in the end.