No.
As I said it all depends if you believe he's the real on or not.
If you do then you try to find a solution with him.
If you don't you release dox and file a case.

No use of insulting him, and asking this "piece of shit to repay what he owes".

But seriously does anyone believe he's going to repay everything?
Not a question of being hacked. Just that if he was not hacked, he scammed 10k$, he's not going to give it back. Especially when you know how difficult it is to accuse anyone with only digital proofs...
If he was hacked he's not responsible. Unless he has signed a due contract with all of you explaining he'll assure the funds again any criminal act he doesn't have to repay it. And as "good" as he can be, there is no way he's going to spend 10k$ of his own money just because he doesn't want "to disappoint people". Nobody does that. That's not being honnest, that's being stupid. People knew they also took a small risk by sending the funds to one person. If he was genuinely hacked then he's maybe stupid, but not totally responsible.