If you want his death, you are saying you’re OK before God with the murder of another man who’s not a danger to society in his current state.
If you leave him in that current state, you will face Jesus Christ without that death on your soul.
He’s no longer coming at anyone with deadly force, nor will he be in the future.
So what if he is born again (not my religion) - that just means one less soul snatched by satan, one more lost sheep back into Christ’s fold.
He will die and meet his maker - what’s the hurry, other than blood lust. The victim is likely in the arms of Christ - he don’t care, he’s in bliss. The family needs to come to truly see that too and to want to join him - with no blood on their hands, lest they’ll never see him.
"For he (authority) is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is the minister of God, a revenger to execute wrath upon him that doeth evil."
We have laws. The punishment for taking this life was death. He knew that and is guilty. I feel no guilt for my support of capital punishment nor sympathy for his life when he took another.
If you knew the Bible at all you would know Jesus didn’t spare the lives of the men who died beside him on the cross. He saved a soul but the punishment on this earth was accepted and taken.