Tupac Shakur is a legend now, but his roots were in a troubled childhood spent with - and apart from - a dynamic mother, a relationship that in large part shaped the man he would be come. FX has a new docu-series in the works entitled "Dear Mama. In the new trailer that dropped yesterday, we see rare footage of a 17-year-old Tupac talking about his troubled relationship with his mother Afeni Shakur.