http://www.cbr.com/len-wein-wolverine-creator-dead/
Len Wein was a writer and editor for several DC and Marvel comics since he got his start back in 1968. He co-created the characters Wolverine and Swamp Thing, helped launch the modern version of the X-Men with "Giant-Sized X-Men" #1. His most famous work as an editor was the original "Watchmen" series by Alan Moore & Dave Gibbons.
Len Wein was a writer and editor for several DC and Marvel comics since he got his start back in 1968. He co-created the characters Wolverine and Swamp Thing, helped launch the modern version of the X-Men with "Giant-Sized X-Men" #1. His most famous work as an editor was the original "Watchmen" series by Alan Moore & Dave Gibbons.