Graphic novelist and cartoonist Glyn Dillon announced the death of his older brother, Preacher co-creator Steve Dilllon, on Twitter this morning. Born in 1962, the British artist began his professional comic-book career at 16 with the first issue of Marvel U.K.’s Hulk Weekly. In 1988, he launched the comics magazine Deadline with fellow artist Brett Ewins. Partnering with writer Garth Ennis, Dillon became well-known for his work on Hellblazer, The Punisher, and their original Vertigo comic-book series Preacher, which has since been adapted into a show on AMC. Fans and fellow artists alike took to Twitter today to mourn the late artist, who had just this year worked on Scarlett Witch and returned to The Punisher.