Declined Scammed 500 dollars worth of items.

victim:
| steamname: BeautyBeat
| steamID32: STEAM_0:1:56717482
| steamID64: http://steamcommunity.com/profiles/76561198073700693
| customURL:
| steamrep: http://steamrep.com/profiles/76561198073700693

Scammer:
| steamname: Jing [dota2traders.com]
| steamID32: STEAM_0:0:71696298
| steamID64: http://steamcommunity.com/profiles/76561198103658324
| customURL:
| steamrep: http://steamrep.com/profiles/76561198103658324

Scammer 2:
|steamname: navi fanatic
| steamID32: STEAM_0:1:63092858
| steamID64: http://steamcommunity.com/profiles/76561198086451445
| customURL:
| steamrep: http://steamrep.com/profiles/76561198086451445

Scammer 2 had agreed to buy my items and claimed to have a middleman jING( Scammer 1). And after i traded my items they took it all away and blocked me. Please help me sirs. This was my first time trading.

Hello there! Could you please provide some screenshots of:
-Chat
-Trade History
Thanks!
To check your trade history.
1. Go to your Inventory.
2.Click More.
3. In the drop box it should say trade history.
4. Click trade history.
5. Screenshot the trade.

To screenshot.
Windows:
-Use snipping tool
-printscreen and paste to paint.

Apologies, it should say Inventory History.