Declined 76561197978875726 scammer (Dalakus)

Subject: 76561197978875726 (evil_scammers_name)

Victim:
steamID: Somnium
steamID32: STEAM_0:1:40030046
steamID64: http://steamcommunity.com/profiles/76561198040325821
customURL: http://steamcommunity.com/id/SomniumTP
steamrepURL: http://steamrep.com/profiles/76561198040325821

Scammer:
steamID: Dalakus
steamID32: STEAM_0:0:9304999
steamID64: http://steamcommunity.com/profiles/76561197978875726
customURL:
steamrepURL: http://steamrep.com/profiles/76561197978875726


Screenshots:
- Pictures of chat (required) --> http://imgur.com/a/eaYAv (I'm french)
- Trade window if relevant (please keep the practice of chatting in normal chat, and just only trade in the trading window).
- Screen shot of profile page if the offender is impersonating admins, middleman, or trusted traders. (showing steam community link, pic, nickname, friends and groups)

Description:
I let a message on Steam Trades telling that I want to trade a Torchlight copy. He contacted me telling he have a Legend of Grimrock key. I ask for his Steam Trade profile and he look trustable. The fact is that Dalakus really exist on Steam Trades and the scammer use the Dalakus identity to cheat me... Anyway I can get is real profiles but to late...
I know another person on Steam Trades who is cheated too by this scammer.

I was also scammed by this individual. I have a topic on steamtrades about trading my Darkness II and Bioshock II. He added me and asked if i use paypal. He pretended to be a Dalakus with +65 rep and asked me to go first and i did. I gave him 2 gifts and he left me with nothing even though said to send a 18 euro gift... He is probably for Czech Republic.

http://i.imgur.com/OdDmm.png
and trade history: http://i.imgur.com/Ipvhv.png

Somnium, Please post a screenshot of your trade history to verify that you sent your part of the deal.
Paladyn. please post a screenshot of your Paypal history for the time in question to verify non-receipt of payment.

Archiving report - No additional feedback from the victim.