Understanding 「あの後のオヤジとあれからどうだった？」

Question

From the second episode of Death Note, a classroom a student says to another student:

ってあの後のオヤジとあれからどうだった？

1. I'm curious about this <NOUN>と...<COPULA> usage here. Is this slang for something else, or is it considered grammatical? Is と just the particle meaning "with", in this context?
2. あの後のオヤジ means "afterward's old man"? I assume it means something like "the old man (placed in time after something just happened)"?

Is a good translation something like

After that thing happened (あれの後), what happened with (と) the old man?

Answer 1

あの後のオヤジとあれからどうだった？
How was it with the old man after that?

1. Yes it's と meaning "(together) with". But note that "what happened with ～" does not necessarily carry the meaning of this と, especially when it marks an event or situation. A more explicit translation would be "What happened between you and the old man?"
   • 彼に何があったの?
     What happened to him?
   • 彼と何があったの?
     What happened between you and him?
2. Yes, あの後のオヤジ is a noun phrase, "the old man after that". Another similar examples would be:
   • 当時の私
     the me back then
   • 将来のあなた
     the future you
   • 10歳のときの彼女
     her when she was 10