Sounds fair to me.
Although, even if, say, even if, and it's a hell of a long stretch to believe it, but just say, even if the Laundries believed Bri's little story about how they went hiking and Gabby fell over a cliff or something, and he couldn't do anything about it, so he picked up a rock ( weaponised himself ) and hit her over the head, to 'spare her more pain'.. let's just say ordinary housewifely folks in suburban Florida believe this, even so, I don't think, even in the USA that one is allowed to go round banging people over the head, killing them , to 'spare them more pain'. I could be wrong, but it just does not sound right. Not even for Florida.
The Laundries must have known, being born and raised in the USA that this scenario did not fit the criteria for absolvement of some police and legal oversight.....there has to be some sort of apprehension of wrong doing admitted to here, and consequences delivered....