IMHO,Heteropaternal Superfecundation, Is what you are talking about. Cain and Abel were twins. I've seen this before and it distills down to a race issue.


http://en.wikipedia.org/wiki/Heterop...perfecundation

http://www.youtube.com/watch?v=TwXoKNvmiwI

http://www.tatepublishing.com/bookst...-1-60462-028-3