As of 2025, Keith, dubbed the "Happy Face Killer" for his signature smiley face in letters written ... In 2025, Paramount ...

signing letters to the media with a smiley face. This, in turn, led him to be dubbed the "Happy Face Killer," a label that proved convenient in true crime circles, where names like "The Golden ...

Jesperson, whose preferred method of killing was strangulation, became known as the Happy Face Killer because he drew smiley faces on sick letters he sent to media outlets and authorities.