do you bleed?

Roger Slifer, a noted writer and editor for Marvel and DC Comics in the 1970s and 1980s, passed away Monday, his sister Connie Carlton confirmed on Facebook.

Slifer was best known in comics for co-creating DC's Lobo with Keith Giffen in the Omega Men series in June 1983. Originally created as a parody of popular anti-heroes the Punisher and Wolverine, the character quickly outpaced the popularity of the Omega Men and was featured in a number of solo series over the years including a current one at DC.

In addition to writing comics, Slifer worked in a number of staff positions including asisstant editor and later special projects editor at Marvel. In 1981 Slifer moved to DC, becoming the company's first sales manager specializing in the direct market before moving on to becoming an editor. After leaving DC in 1985, Slifer transitioned to animation by working for Sunbow Entertainment, including being a major part of the animated series Jem and the Holograms, Transformers and more.

On June 23, 2012, Slifer was hit by a car while walking near his home in Santa Monica, California. The driver fled the scene and was never found, leaving Slifer seriously injured which necessitated being put into an induced coma because of head trauma. He was later transported to his hometown in Morristown, Indiana for continued care.