when a family member passed away, my heart ached for his wife. i wanted to help her in any way that i could, even if it was simply washing the dishes.
i would encourage you to help as much as possible. i do the same now since i know what loss feels like.
that is awful. life comes with so many challenges. they were the family that helped everyone around them, no matter what they needed. it felt good to be able to give back to them.