While there is an Omar Shabazz in Genesis (means “talkative one”), this scum’s name is based on Nation of Islam mythology: http://www.muhammadspeaks.com/shabazz.html
Islam accepts Genesis with a certain amount of warpage so that is probably the source of the name.
Actually I knew a Shabazz when I was a teenager long ago. The spokken name was more like Shabayuzz.