Reporting DarthMauled for Charging Back

Scammer's profile link: DarthMauled
Amount scammed: $500 Charged Back
Discord ID + Unique Discord ID: darthed#5990 / 945515556549849149
Proof that it's their Discord: Linked here: Selling Lvl 119CB 1850+TTL Main - 5x99's,Quest Cape,Infernal Cape,Maxed House + More!
Explanation of the trade: It seems he's blocked me on Discord so I can't pull up the chat logs at the moment but; Had this in my gyazo ( Taken on May 14 )
How they scammed: Charged Back $500
Other relevant trade screenshots: Proof of chargeback;
Pm when we first talked:
When he first started dicing with me: https://www.sythe.org/posts/59698029/
( He states Discord confirmed )

From what I do remember in the chatlogs. His name's Preston White, he's in the military. How far am I allowed to take action towards this?
Edit: He also uses Navy Federal Credit Union

 

Screen capture - 9a6cfc40741d2e4a93ccb676f498a35d - Gyazo
Screen capture - 14ca7f569999590f85798b2b6c396c4b - Gyazo

 

So, as asked before. How far am I allowed to take this as far as his personal information goes and what not?