Barmymoo's death scene had that 1% chance happened was actually pretty easy to write.
It was obvious in the darkness. The moment Friar Barmymoo saw J, it was clear that this person no longer followed the path of God. J had abandoned humanity for demonic power. Nothing more needed to be said. Friar Barmymoo was marked for death.
Still, within the house of God, for a believer in whom Christ dwelt, who carried upon him a sacred relic, a miracle could be performed.
The Friar led the monster deeper into the Church, making inconsequential talk. It was almost a grotesque comedy, how his last words would be so mundane toward such an awful monster. J himself seemed sardonically amused, his answers easy, relaxed. Soon, he would make his move.
The relic was a Key of Providence, a simple rope that Saint France himself had used to turn a blood drinker back to ash. It was wrapped around Barmymoo's right arm. It took less than a moment for the Friar to undo the knot. It would take a few moments to use, but he had to get close enough to J without raising suspicion. The how of it eluded Barmymoo until divine inspiration struck.
Barmymoo stopped before the crucifix and apologized for not having embraced J, a brother in Christ. Arms open wide, Barmymoo watched an awful smile bloom on J's face. The embrace felt like death, but the Friar was prepared. The holy Key of Providence was quickly wrapped around J's waist. The moment of surprise from J was enough for Barmymoo to begin. " I kill, I give life. I injure, I heal. There are none who escape from my hands. There are none who escape from my eyes. May it be so that you are shattered. I welcome the defeated, the aged. Surrender to me, learn from me, obey me."
Fangs sank into Barmymoo's throat, but that was not enough to stop a Friar in his holy duty! Even as J drank Barmymoo's blood, the secret rite emerged from pale lips. "May you be at rest. Do not forget the song, do not forget the prayer, do not forget me. I relieve you of all burdens. May it be so that there is no deception."
Even as lifeforce was stolen by the desperate J, who could not escape the binding of the sacred Key of Providence, Barmymoo continued the holy work. Death would come, but with death, so would heaven. " Retaliation unto forgiveness, betrayal unto belief, despair unto hope, darkness unto light, death unto life. May you rest in my hands. Let there be mark of your sins. Eternal life is found only in death. Forgiveness is before you, and so my incarnation vows."
With the last bit of life, the Friar finishes. "Kyrie Eleison."
A sacrament, a miracle of God derived from faith. The teachings of God are the greatest weapons against spirits. The Key of Providence that eliminates wandering souls. It sublimated the eternal and damned life of the Dead Aposle with great mercy.
Only ashes remained of J as Barmymoo's lifeless body fell to the floor.
edit: added music. Everyone else had it, after all!