>> my name is solomon northrop. i am a free man and you have no right whatsoever to detain me. >> you not a free man. you're nothing but a georgia run away. >> solomon northrop was reunited in 1873. more than 150 years later now hidden details in the story are coming to light for at least one of them. north prop's great great great grandson, clayton adams. >> nba commissioner-- >> clayton adams has been in search of solomon northrop, his great great great grandfather and also in search of himself. >> i thought i knew who i was at a young age. i new my history, i knew my grandmother. but that was as far as i could go as far as my descendants. thinking who i am and realizing this and realizing there's more than me than just two generations back. because it's hard for african americans to check their history because of the slave trade. it was a missing piece that i didn't even know was my history. >> many 12 years aslave was his road map. i campaigned clayton down pennsylvania avenue in washington, d.c, where, for the