I am really sorry to hear of your loss and my thoughts and prayers are with you at this time. I know that he is fine and even though I may not be feeling, seeing or sensing him, I know he is fine.
I am curious if he was a smoker? I have never smoked and I feel like I really want one (which I don't), I hear someone's voice asking for a cigarette. Stay strong and help out those who will grieve deeply. He makes me feel like he wants his son to know he is okay. Were they somewhat at odds or separated for some reason before his death, or could his son not be with him at the time of death? All is better now with his health. I keep seeing medical facilities around me while I type, he is glad to be done with the health crisis. No fuss no muss he is saying. He is a simple man apparently.
Watch for signs from him over the next few days and weeks as he will be very strong with his attempts of letting you know he is with you all.
Take care and God Bless you all during this difficult time.