I could never buy into the notion that a person could live a life of heinous depravity and evil, and then have his soul saved just by begging for forgiveness on his deathbed. That just goes against all the natural laws of Cause and Effect.
Salvation is the loophole to cause and effect. Jesus suffered and died to pay the ultimate price for our sins. He takes the effect upon himself
If cause and effect held true, we'd ALL burn in hell because not one of us can ever suffer enough for the sin we have committed.
In God's eyes every sin, no matter how heinous or how trivial, is the same. They are all disobedience and the penalty for disobedience is eternal death (separation from God). We have all sinned so we are all guilty and we all need to be saved.
God is perfect and nothing except perfection is permitted in His presence. How can something that is flawed and corrupt (us) ever be made perfect? It can't by itself. It needs to be remade. The price for that sin must be paid and Jesus paid it all for us. In fact, this is why Jesus had to die for us to be saved. We are not perfect and thus we cannot offer a perfect sacrifice to "perfect" ourselves. No matter what we do or what we give we will always be flawed. Only a perfect sacrifice could remake us. And of all the men who ever lived only Jesus is perfect. Either He paid the price or it couldn't be paid.
The problem with a death bed conversion is if you wait ill then you may not have time to get saved. death can come awfully quick.
It's far better to repent of your sins now and call on the Lord to save you. Life will be far better for you, and for those around you.
Salvation makes no logical sense whatsoever. We did the crime we should do the time. But God loved us so much that He made a way around it.
It has to be genuine repentance, which God is capable of discerning, even if we are not.
Still, what are the chances that someone who turned his back on God all his life like that would come to true repentance at the very end of it?. Especially as he committed another grave sin by hanging himself in defiance of God?
I don’t think that you need to worry about whether he is suffering right now.