As of now this is what i heard.
People claim he owns a gold mine in africa and doesn't pay his workers.
He claims he doesn't own a gold mine
But apparently he does lease the land to a gold mining company.
Said company is apparently defunct now.
if all this is true, he's only being attached to this controversy because he is the most famous person tied to it, but isn't directly responsible. Their gold mine employers are.
You could ask him to evict them from the lease as a way to punish these gold miners for not paying their employee's but apparently they are already out of business so there is nothing he can do about it.
If he is lying and making excuses, it seems like it would be pretty easy to prove him wrong,so we only have to wait for someone to produce receipts.