According to Down the Tubes website:
“We’re sorry to report the passing of Spanish comic artist and editor Luis Bermejo Rojo (frequently credited as Luis Bermejo or, simply, Bermejo), best known in the US for his work on titles such as Creepyfor Warren Publishing. His work for British comics included strips such as “Heros the Spartan” for Eagle (taking over from Frank Bellamy), and “The Missing Link”, which became “Johnny Future” for Fantastic in the 1960s – but who also drew for titles as diverse as Boys’ World, Girl’s Crystal, Tina, Tarzan Weekly and the private eye stories “John Steel” for Thriller Picture Library.
He was also notable for his war stories for Fleetway’s Battle and War Picture Libraries, and strips such as “Phantom Force Five” for Buster.”
Down the Tubes has far more info.