In 1997, two retired New York City detectives, Kevin Gannon and Anthony Duarte, and criminal justice professor and gang expert, Lee Gilberton, advanced the Smiley Face Murder theory. This came ...

“PITTSBURGH HAS A SERIAL KILLER,” reads the post. “Be careful, be smart, be mindful. Mfs have named him ‘The Smiley Face Killer’ everyone please STAY ALERT! Idk why this isn’t getting ...

The "Smiley Face" murders are one of the longest-running serial killer theories in the U.S. Since 1997, around 45 men mysteriously disappeared after a night out only to be found dead in a nearby ...

But instead of chalking the experience up to a strange encounter, Waks’ mind went in a much more sinister direction — this was the work of a serial killer. Over the course of seven weeks ...

Article continues below Some have even suggested ties to the so called 'Smiley Face Murders' theory - which was proposed following a string of deaths in the late 1990s and 2010s. Almost 50 young ...

He was dubbed the "Happy Face Killer" because he put smiley faces on letters he sent to the media detailing his murders. Although Jesperson confessed to the August 1994 murder of the woman now ...

Getty Images for Paramount+ Moore was 15 when Jesperson, a prolific serial killer infamous for drawing smiley faces in letters to the media and prosecutors, was captured. The case is now the ...