Improper Format Clean Horseless Headless Horsemann Scam

victim:
|steamID: DubD@ddy
|steamID32: STEAM_0:0:18840409
|steamID64: http://steamcommunity.com/profiles/76561197997946546
|customURL: http://steamcommunity.com/id/dubdaddy
|steamrepURL: http://steamrep.com/profiles/76561197997946546

scammer:
|steamID: Qvi
|steamID32: STEAM_0:1:19045280
|steamID64: http://steamcommunity.com/profiles/76561197998356289
|customURL: http://steamcommunity.com/id/Arcy-
|steamrepURL: http://steamrep.com/profiles/76561197998356289

http://i.imgur.com/TM6Uu.png
http://i.imgur.com/RfZN3.png

Description: I was playing in a koth Halloween server and he requested me for trading. Than he immediately asked if i was selling my Clean Horseless Headless Horsemann's Head and he showed me a bunch of Hats and weapons, so i accepted to deal for a Bonedolier and a Track Terrorizer. The Clean Horseless Headless Horsemann's Head is extremely rare, so i got scammed. The only proof i have is a screenshot of my Inventory, and a screenshot of me asking if he could trade the head back to me.

I don't think its a scam, more like a noob-trade...
Anyway, how did you got the hat?

yeah... i got it simply by killing the hhh