Got scammed

Scammer's profile link: Shadowsong82
Explanation of the trade: This acc [Selling] Near Max GMaul Pure 15 Pray w/ Fire Cape for 120$
Amount scammed: 125m Osrs
How they scammed: He wanted to sell this acc for 120€ or 125m to me. I as an idiot agreed / trusted him to and didn´t want to use a mm. I gave him the Osrs cash and he scammed me. I posted on his thread and he PM´d me and we wrote on Discord.
Proof that it's their Discord: Shown on the Discord chat
Discord ID + Unique Discord ID:mbeezy#0934 / Don´t know what unique Discord ID is.
Other relevant trade screenshots: Imgur

 

@Shadowsong82

Care to help us out here?

Edit:
check edit for extra info.

 

@Mburakk
I'm sorry for your loss.

https://i.imgur.com/GSz0FMa.png additional info Impostor's UID: 538488854181838849
https://i.imgur.com/0kdXwmW.png UID is not a match to @Shadowsong82's Discord which is:
Prawdigy#9735
UID: 366674378290626570