I was just about to post something very similar.
This modern trend of using the word closure is nothing more than an insult to the bereaved.
There is no such thing as closure. What does it even mean? Can everyone go home and forget about it because your child/husband/wife has been buried, or a jury found someone guilty of their murder. Do any of these things take the pain away? No, they bloody don't.
There is some value in seeing justice done but there is absolutely no such thing as closure after losing someone you loved.
Joanna Yates father (the girl murdered in Bristol in 2010) lost his shit during an interview when it was suggested that a guilty verdict had finally brought closure to his family.