Larry Birkhead has "always tried to protect" his daughter since the death of Anna Nicole Smith.
The 52-year-old photographer is father to Dannielynn, 18, with the legendary supermodel - who died of a of a drugs overdose at the age of 39 just six months after she gave birth in 2007 - and admitted it was "hard" to know just who to trust when he was bringing their daughter up alone.
