Originally Posted by Amateur
Ethically, you cannot accept payment for services over which you have no control. Since you sold the site, the thing to do was to reimburse the client and remove the links prior to the sale.
It was not ethical to ask the buyer to agree to make income for you, after you sold the site, which is, in essence, the deal you wanted.
At this point, the only thing to do is to "take your medicine", and make a pro-rated refund to the advertisers, and leave this topic alone. It does nothing to help you or your situation.
Since no one here can act as a vigilante, your remarks on the personal issues don't serve any purpose. If you are sincerely concerned about that, you can contact police to find out what you can do to bring a fugitive to justice.