You believe there has been no evidence? Zero? So for instance, if he lied and it can be proven, that remains in the speculation category? There has been almost no evidence results released to us, the public, by the police dept. That doesn't mean no evidence exists. It does mean the public (which includes us WSers) are not privy to what may exist. To assume there is none is likely incorrect.
I have not seen any evidence yet that allows me to draw a reasonable conclusion that he murdered her. That is my opinion.