I do not think this is a vanity page. It seems to be a general article about gangstas and the gangsta culture. Looking at the history it seems that the link to that myspace was inserted before the rightfully placed information about gangstas and their idealisms and habits. 
Normal vandalism ensued afterwards (eg pov) 'He is a 'G' at bball'
and the link to myspace.
I think it would be best to leave the information about gangstas themselves and remove any personal information about myspaces and particular 'Gangstas' ;)