He may also be lingering for his own reasons - - reasons only He and our Good Lord can understand in the moment. My own grandfather, it seemed, didn't want to go until he was ready. The day he died, after their last game of cards, my mother confronted him gently and told him in so many words that it was OK to let go - - that it was time whenever he needed it to be. He died a few hours later in his sleep. All you can do is pray, and all we can do is join you. God bless you, and God bless Fred and his family.