He remembered someone...
Someone that truly cares for him.
Someone that is there for him.
The reason why he became an alchemist.
A great scientist...
Someone who didn't complain about anything that he's done.
Someone that gave him an unconditional...
...
...
...
love.
--
The Wendigo started crying on that day, and he still kills the child.
But he can't feel anything about it, maybe he was just consumed by hatred of humans.
He journeyed to his laboratory or the cave he pits his doll away but the cave itself was gone.
He even offered people gold as a wendigo, just so he could have a lead on where to find her, because of that he got famous.
They said that they only need to fool him and they will have gold, knowing that he is being used again by humans. His killer instincts were once again triggered.