He's black cause society says he is ,thats the way it works.Most people are a mix but again what you look like (or more importantly what others determine by looks you look like racially is the key).Lots of blacks have white ancestors along the way but that doesn't stop them from being defined as black.Shit Al Sharpton not to long ago found out he was probably related to Strom Thurmond the white segregationist whose ancestors were slave holders.
"Indirect familial relation to Strom Thurmond
In February 2007, genealogists using the website Ancestry.com discovered that Sharpton's great-grandfather, Coleman Sharpton, was a slave owned by Julia Thurmond, whose grandfather was Strom Thurmond's great-great-grandfather. Coleman Sharpton was later freed during the Civil War.
Thurmond was notable as the longest serving Senator (at the time of his death) who was a major advocate of racial segregation during the middle of the twentieth century.[26] Thurmond's illegitimate daughter, Essie Mae Washington-Williams, stated she would welcome Sharpton to the family if a DNA test shows he is a relative.[27] In an interview, Sharpton said he has no plans for the DNA test to see if he is related.[11]
The Sharpton family name originated with Coleman Sharpton's previous slave-owner, who was named Alexander Sharpton.[28]"
http://en.wikipedia.org/wiki/Al_Sharpton
Al knows who and what he is and don't need no stinking DNA test or to be welcomed into the Thurmond family.