Anna must have like Larry well enough at some point and time. He may be the father of Dannielynn. I wonder if they ever watch the interviews they do and wonder "what was I saying?"
They had a silly argument over sunglasses..
The baby was born, Daniel died, so Howard took advantage of Anna's fragile state of mind and body.
He probably convinced her that Birkhead was going to get custody of the baby, so he should be named the father.
AND on and on and on...
sw