There is no tortious liability here.This is purely criminal matter. @jired,updates on how the matter goes.

The case hinges on proof that;

1. The agent assaulted the friend (why would he resort to assault instead of reporting to police, rejecting the proferred money). If there is a medical report, you have a good case.
2. Researching the agents background to establish whether there is a pattern of deceit and violence.
3. Finding other victims of the alleged con. The landlords would normally have received complaints if there is a pattern.
4. Establishing that the fake money in the agent's possession was more than the 10k.

You may want to be sure of what you are talking about before being so certain about it; you would otherwise mislead people like in this instance.

Thanks to all for your contribution.

As I said earlier, the guy was released on bond on that very day and was to appear on court today (Monday the 7nth)We managed to get some money for an advocate to open a file. So they appeared on court in the morning but the case was deferred till tomorrow for luck of enough evident. So the police went to do more investigation
Meanwhile, the guy had gone for treatment and already has a medical report, we are just praying that all goes well.

But he is very confident that the notes given to him were not fake. His friend had an ATM receipt for the notes, he removed them from his pockets, gave them to this guy who folded them and placed them in his wallet yet the fake notes according to him were very straight and note folded.

But as someone had said here, it’s true that there are very many innocent people rotting in jail.

Since i was not there,the information i have just gotten on my follow up is that the case was deffered,even though the lawyer was present,he did nothing since even his file had not been opened,he also told me that police did not have enough evident