User blog comment:Pseudobread/Bioshock Infinte DLC features new AI companion?/@comment-4959479-20130728230423/@comment-16410636-20131121033711

maby its one of the Booker's who failed before and when ur trying to save Elizabeth u get captured and become SongBird then the very end (because of ur nead to protect her) you escape and tare through Columbia fighting Comstocks forces (they think u gone crazy and realise ur heading for the tower and fear the worset) once you reach the (lets say) 6 year old Elizabeth they realise that u just wanted to find and care for her. (so the origin and start of a complicated relationship).