Right after Caylee was found, there was a brief mention that LE was looking into possible charges against the A's. There was no mention of just which of the A's they were looking at. GA and CA got their second attorney about that time or at least he spoke out about that time. Undoubtedly that is why LA has hired an attorney.
I'm not saying this is true, and I'm not even saying this is possible. But if LA is determined to be the father, it is possible it wasn't so much his fault..... what if KC was the instigator?
If LA is the father, it could definately have something to do with the murder. No matter who instigated the contact a pregnancy would definately cause certain psychological issues. And if KC wanted to put the child up for adoption and then didn't due to family pressure, every day that Caylee lived would be a reminder of her origins. Plus it would have added to her resentment of her family. So I believe that if incest were ever proven it could go a long way toward proving motive.
And yes I too have noticed that this is one issue that the A's has never addressed.