I think its one of those situations that you dont know how you'll be until it happens to you (or preferably not)
Losing a child ,i imagine,would be the worst pain in the world, and when someone else takes them from you.....yeah i imagine you would feel blind rage ,amongst other emotions,but everyone handles their grief differently.
Personally ,i think it must be even more devastating for parents in NZ who's children are killed,(not that them being murdered wouldnt be awful enough) but the killers get name suppression ,max 18 years in jail.....what a joke.
Everyone heard her name for the last 3 weeks,she didnt get the dignity of remaining anonomous....why should he?
And worst part is, yay they got him, at least that bits closed,but after the trial etc what they'll find,(and i speak from personal experience) you soon realise that, it wont bring her back .