22 is awful. Very sincere condolences to his family.
Perhaps this is appropriate with Dean Richards as well : -
Eternal rest grant unto them, O Lord, and let perpetual light shine upon them. May the souls of the faithful departed, through the mercy of God, rest in peace. Amen.
The more common form that I use is this one: -
Eternal rest grant unto them O Lord and let perpetual light shine upon them. May they rest in peace. Amen.