The stalking boyfriend murdered the vet logically.
However, if I were on the jury I would have acquitted, albeit reluctantly, since the standard of proof was beyond a reasonable doubt.
I actually didn't think the lack of steak was dispositive since I think it likely that a guy would have made a late easy meal of eggs. However, the prosecution (at least from what was aired) failed to provide a reasonable explanation for the lack of dog feces. That would have been dispositive for me unless some kind of egress from the trailer was shown.