U L C revival madness

An individual by the name of ______ _______ has been revived non-stop after all the deaths he went through such as deadly illnesses, accidents and suicide attempts.
Every time he gets revived his body cures itself from all bruises and deadly constructs.
However this made him go insane as he wanted to remain dead as he always misses the chance to live a peaceful life in Heaven.
But death isn't the option, so he prayed that someday he would be able to see what the afterlife has in store.
Unfortunately it still didn't happen. The man began to become jealous of us mortals and he swears that we will live through the pain he has been in for years.
He has kidnapped people and done some experiments on them, but they were never revived.
Nobody knows why this is happening but maybe it is his soul that's refusing to move on or it's a curse.
We have also done autopsies on the individual, but we did not find anything of interest except for the fact that his brain has been confirmed dead and that some kind of energy beyond our understanding desires to keep him alive forever, maybe as some kind of revenge or morbid curiosity.