Bad weekend.

Very sorry for your loss. Three days ago my 2 daughters lost their mother (my x wife from 30 yes ago) to a brain hemorage. She was 65 and totally unexpected. I am no help at 800 mi away. I have lost both parents decades ago, 1 cousin like my brother, best friends, etc....
I told the girls all they can do is grieve, and the process is theirs personally, not set in any way or time limit. Your loss was so very tragic, no doubt. Still that loss, no matter what the circumstances. All you can do is be supportive.