whats with this?

He also appears quite a bit back behind the fireplaces in that area accessible with the omni-key (not the vault).

I believe there was some sort of story that regarded him in the quests last Halloween, but I cannot recall it. I do know that all the NPCs inside the mansion turned out being already long dead though (except for I believe the butler or some sort of child related to the family who turned into the old man outside the mansion {bah, my memory sucks}). I just can't quite place who he was.

That's what my thread is for. xD

But no, in GMS they never mentioned the deal with that kid. If you do the Smores quest the Agent mentions him, but he doesn't give much detail. There's a hole in the quest data right after the Smores quest, so I always expected a follow up to explain the kid, but it hasn't materialized.

In the KMS mansion there's a boy NPC who looks a lot like that.

Still don't know what his deal is though.