I hope nobody minds if I take this a bit further. *AZRAN SPOILERS* When you think about it, the entire Bronev family is genius until they break under distress. Leon had Rachel: she died and he went nuts. Sycamore had his wife and daughter: they died and he became Jean Descole. Hershel had Claire: she died but Hershel stayed sane through Claire's memory, Luke, Emmy, and Flora. Alfendi was already born twisted, but with Lucy, he's learned to control himself again.