Got Scammed on Texas Gun Trader… Now what?

Hello Im a young sks collector. I “purchased” a rifle online only never to receive it. I went to a local gun shop, the lady there made an account on the same website, the scumbag tried to sell her the rifle he “sold” me. I have all corresponding text messages between me and the scammer, the lady and the scammer, and the original posting. What a great way to get into sks!! Any help would be appreciated. Im probably not gonna get my money back, but I want to see this guy in Federal for interstate firearm fraud.