Sounds like they have a verdict, and don't want to announce it til tomorrow. Otherwise it seems like they would continue deliberating this evening, just to get it done.
I am thinking the same thing. They have a verdict, want to sleep on it and when fresh, reconfirm their decision and announce.
They probably want to pack up their belongings so they can head straight home right after the verdict is announced.
If they had a verdict why wouldn’t they just deliver it tonight and go home?
i think they’re just used to ending their day around 6PM, and they’ve had a long day.