I just had the biggest 'derrr' moment, re how Tostee could earn so much from carpet cleaning part-time -- he was probably working for his dad, who was probably overpaying him a bit..
The whole apology thing is a bit tricky, IMO. Yep, on one hand, I can see why these parents would not choose express sadness over the death of this young woman. But on the other, their silence makes them seem uncaring and callous, or 'closed ranks' around a guilty man.
Not their fault, at all. But at the least, a simple, neutrally worded expression of sympathy for Warriena's grieving family seems to me the right thing to do, if that were me I would certainly be expressing my condolences to a family who've lost such a vibrant young person. I think there's ways to express such a sentiment without it seeming an expression of guilt. I'm sure they're clever enough to come up with such wording. It's not hard.