I'm sorry for your loss.
He drifted into sleep and didn't come back.
I know it's probably no consolation, but this is the best way to go.
He was 94
This is a very good age. We can only hope to live that long in this time we're in.
My grandma was approximately 94 when she went. (they didn't know her actual birthday but they estimated based on an event that happened around her birth).