*Dwayne McDuffie, who wrote comic books for Marvel and DC and founded his own publishing company before crossing over to television and animation, has died. He was 49.

The Detroit native died Monday, a day after his birthday, DC Comics said. He reportedly passed away due to complications following a surgical procedure he underwent Monday evening.

McDuffie wrote comics for the New York-based DC and Marvel, including runs on Batman: Legends of the Dark Knight, the Fantastic Four and the Justice League of America. He also penned several animated television shows and features, including the just-released “All-Star Superman” as well as “Justice League: Crisis on Two Earths” and the animated TV series “Static Shock” and “Ben 10: Alien Force.”

News of McDuffie’s death was first reported Tuesday by the website Comic Book Resources. As recently as last week, McDuffie attended the premieres of the new “All-Star Superman” film in Los Angeles and New York, and was scheduled to appear at an event this week at Golden Apple Comics in Los Angeles.

McDuffie tweeted last week that he was “Taking a break from a script I owe to attend the LA premiere of ‘All-Star Superman.'”

For MORE, read “Remembering Dwayne McDuffie” at ComicBookResources.com.