- Looks like it's confirmed. Jedikiah has performed many medical experiments trying to transfer powers from a Homo Superior to a Homo Sapiens. None have ever worked. Then, when he gets the chance to do it to twin brothers, he's more upset at the fact that one is dead than at anything else.
- Or, John could have told her from his Ultra days - which raises the question, was John ever thrown into the Citadel? Jedikiah has shown he's willing to treat any Homo Superior as basically disposable.
I know this is a little far fetched, but I think it may be possible that John is really jedekiah's biological son for a few reasons.
1. John's parents were never actually shown in the show (not yet anyway)
2. When Jedekiah went to pick up John, he did it almost by himself using a comforting demeanor towards John instead of barging in with a SWAT team like how Ultra did Kurt.
3. Then there is the fact that he shows a more caring side toward John than he does toward any other HS, even going so far as to keep the other HS from learning John killed Stephen's father when he was held captive.
4. And there is his girlfriend Morgan. It hasn't been stated how long they were together, but judging by the photo Stephen found, it could be possible that they've been a couple long enough to already have a kid that is John's current age.
My whole theory is that while Jedekiah and Morgan were together in their earlier years, Moran at some point became pregnant and, after the required amount of time passed, gave birth to John. However, both Jedekiah and Morgan knew they couldn't raise him with Jed working with Ultra and all. So they decided to sneak John into the foster system, but when John's powers awoken and he started stealing food for himself and his foster friends, Jedekiah picked it up and decided to grab him before anyone else found out. Like I said, it is just a THEORY.
- Still, that's... disturbingly plausible. Normally Ultra would have just sent some field agents - and even if this was in the "kinder, gentler" era of Aldus Crick's Ultra I still can't see Jedikiah personally taking time out of a busy schedule to pick up John unless he has some kind of attachment to him. It also would explain why John has his abilities, if it's at all genetic in origin (though, I should note that the series plays fast and loose with biology and the 1970s show was even worse.)
- Something to consider in support of this theory: The actors Luke Mitchell (John) and Mark Pellegrino (Jedikiah) bear enough passing resemblance to each other for the characters to plausibly be related.
- So confirmed.
- And later, Stephen was able to contact Cassandra (weakly) when she was in the Citadel.