Gone thru similar with an old boss...to see the personality changes brain tumors can cause is also heart breaking...
Prayers for them both to find peace... I too have a friend, who has turned away from religion and he says perhaps not his Lord, but I do not know...
Why is it that we worry most about those we care most about but are powerless to do more then witness in our own feeble way?
Lord, In your mercy help us each to witness to you more clearly and bring peace to Joe in this trying time...