Disagree. All we can say is that the forensics the public knows does not say that. But you don't know what you don't know.
LE undoubtedly has a lot they haven't made public; we've seen all along they play their cards close to the vest so they can get more evidence while EA thinks he's skated. I hope she's alive, but with EA in jail and going nowhere, LE has no motivation to arrest him for murder right now (because, in that event, they would have to provide enough added evidence to EA and the public to show why).