I'm sorry for your loss. I have never lost a husband but I have lost a lot of family members. I can't imagine how atheists handle the loss of someone you love.
The only comfort I have found is knowing that soul is eternal and with the Lord.
How bitter life and loss must be when you believe that they are just gone and nothing remains.
My prayers will include you along with our fallen President and his family.
. . . . and you will see them again, in perfection.