Send the texts to 7726 for SPAM and let your provider deal with it. Cease further contact with this swindler. He's also the sender of the pictures and everyone else you'll hear from in this. No more contact with him in any way, he's got to move on.
BigA has better advice, but remember a scam is impossible without a victim. If you don't participate, there's no way you can be tricked. It's not necessarily a matter of what direction anyone's life is headed as much as it is who they can con into falling for it. Nothing to be scared of either if you don't participate.
Well the mans voice sounded like sorthern American . But the text was strange in that the dollar sign was always behind the amount . Example, 200$ something I've noticed from the Nigerian scammers ....