[Nicky91]

season 3 episode 2

Spoiler:

so basically we get a start of Archie's life in prison, the warden and the guards are all being paid by Hiram Lodge so they make things real worse for Archie in there, and the Gargoyle King case, Dilton confirmed first death of the season, Ben was at first in coma but later committed suicide while in a sort of weird trance, and Ethel had a seizure

and it now seems that the parents did something when they were young, and now the kids are being punished for that with the gargoyle king, who could be a suspect for this character, possibly a tall guy