Board Thread:Legitimate Canon Questions/@comment-83.20.147.59-20140730223913/@comment-4723271-20140805114231

94.215.23.200 wrote: I find it rather annoying that so far, they have not even acknowledged his existence in season 4. They don't have to give a full explanation on why and how Isaac left, but now it's like he never even existed.

I find that to be more than annoying, its infuriating that they gave no explanation, they could've easily had chris come back and say Isaac stayed in france, that takes 3 seconds to say. When they wrote Jackson off they made sure we knew he was in london b/c they had Lydia say it, so I just dont get why they wouldn't mention Isaac at all.