I admit I have not been following the trial closely, and obviously the general public doesn't have all the details, but quite honestly, it seemd to me like there was a lot of circumstantial evidence.
Yeah there was a hair of her in his boat, so what, she's his wife after all. Yeah so he was at the marina, could be he tried to catch Christmas dinner.
All in all I don't think he got a fair trial, mainly because emotions were high because Lacy was pregnant.
Apparently the jury was in a deadlock, because they couldn't come to agree "beyond reasonable doubt". Jury members were pulled off of the trial during deliberations, that should give you an idea.
I don't know whether he did it, if he did, then I am all for putting him to death for it, but from what I know I can say that I have reasonable doubt.