Hard to say... I read an article saying that it's impossible for Stanley Ann Dunham to have been his mother. (at least giving birth). I think the real Barry Soetoro is dead, replaced by Barack Obama, a Kenyan raised by Stanley Ann Dunham, Frank Marshall Davis and Barack Sr. who was replaced by Lolo Soetoro when he took off.
The real Barry Soetoro walked with a limp, Barack has none. His stepsister would have recognized him and had to be eliminated along with granny... and anyone else who could identify the fraud.