What if in his original life, Fyodor was just a regular guy?
One who followed his faith, did everything right, one who was virtuous and charitable, one who was the very symbol of goodness.
What if he did all this and was still murdered anyways? Maybe it was a thief, maybe he was helping someone, wrong in the place at the wrong time, type of thing. He was okay with it though, because as he lay dying, he knew he was going on to God's kingdom. He'd done everything right on earth and now he'd be rewarded.
Only, his ability activates.
And Fyodor does not go to his God's embrace, but he is shut out and denied. Not only that but he is reborn into the body of a sinner, made a murderer by his very rebirth.
What if his resentment for abilities, seeing them all as sins and believing he must be the one to rid the world of them was just his way of coping with the fact he was denied his peace?
And that way of coping destroyed everything he used to be.