xtr3mekilling is a scammer! proof!

I was trading a guildwars account for a 93 RS account. I was going first so I gave him the info we changed the email and he changed the pass then asked for an NCsoft account and I said thats it, its with the game, and he insisted that I was lieing and logged off with my account. Cant even get the account back because I helped him change the email and stuff.
http://www.sythe.org/showthread.php?t=579821 thats his thread

 

Does that messenger save chat history any other way? That doesn't look very acceptable, I'm afraid.