>> branca: i...o speculate about what it's worth, but it... >> logan: come on, john. ( laughs ) you didn't... >> branca: it's... >> logan: you didn't make all this money in this town without knowing what your investments are worth. >> branca: well, it would be speculation at this point. >> logan: it's estimated to be worth, like, a billion dollars. >> branca: michael's half? >> logan: yes. >> branca: well, you know, you never really know what something's worth until you go to sell it, and we are not sellers. we are not going to sell any assets. >> logan: at the time of his death, michael jackson had borrowed $380 million against the value of the songs he owned, so the estate had to move quickly to avoid losing the songs to creditors. john branca sold future music rights to sony for a reported $250 million. it was the biggest record deal in history. branca's team also combed through personal video shot during rehearsals for a comeback tour jackson was preparing for right before his death. the footage