Was Scammed Out Of A Firearm But I May Know Their Address. How To Move Forward?

Doozy of a story here that starts a few months ago. I'm in Virginia.

I buy/trade gun related things online, most of the time my transactions are face to face and with cash or shipped to my home if they can be. Very rarely do I buy firearms if I can't have them meet me in person. Over the summer I found something that I'd had on my wish list for a while for a fairly decent price out of state on Tacswap and bought it through zelle (big mistake I learnt my lesson) with the promise that it would be shipped to my FFL to be transferred to me. Long story short the guy scammed me and when I tried to do a charge back I found out that zelle does not allow charge backs which I think is extremely lame because it's built into your bank app but I digress.

Now here's the thing, on Tacswap a lot of scammers will scam one item and then get banned and try again, but this scammer had multiple good legitimate transactions with high rated sellers. I was able to reach out to some of them and confirm two addresses one of which matches with the zip code location on his profile. It seems that he had an address that he reportedly sends things from and an address that he receives items at the latter of which which is the one that I assume he either lives at or knows someone that does to come pick the packages up at.

I called my local police in VA and filed a report and they assured me that they would they would get in contact with his states PD in SC and attempt to find this guy and get me my money back. It's been months and I still need to call the deputy again but the last time I called they were really no closer to figuring anything out and they haven't contacted me at all.

My main question is that what can I do within the law if I believe I know this guys address? I'd really just like to be able to have irrefutable evidence that this guy does or does not live there at which point I'll just consider it a lesson and move on. The ATF doesn't get involved in things for private citizens. his account was banned but I managed to collect a bunch of documentation about our message history/his profile and my messages with other people that have had transactions with him.

Any ideas? Thank you!