In the early 1990s, "Carpe Noctem", a magazine about the goth subculture, published several one-page strips featuring Johnny, now called "Johnny the Homicidal Maniac". Though he never planned to create comic books, Vasquez submitted samples of his artwork to alternative comics publisher Slave Labor Graphics. Between August 1995 and January 1997, the publisher released a series of seven full-length issues based on the character. Vasquez describes the production process for "Johnny" as a "mess" and a "spew". As Vasquez worked on the comic, he prepared less and less, foregoing outlines and sketches and writing dialogue as he inked. Vasquez wishes that he had taken more time to plan the series, and feels that the quality of the dialogue suffered from his haphazard approach.