Crazythings is a scammer

Well for starters, I sold this guy a knife - M9 Bayonet - Slaugther FN as written in hes post, he was supposly gonna pay me 350Euro, wich he did not do, he paid some of it, but not all. Then he said he could win skins on some gamble site, so I said sure if you know you can win I can give you mr M4 - howl, that's when he said that he would pay me back for my howl if he lost it. wich he did (after winning a big pot), he lost it and never paid for that one either, I can upload some images of our conversation. Some of them are from him saying he still owe me for the slaughter, wich he never paid back for either.

So in total I guess he owes me 120+375 = 495 euro, its quite alot really.

After I made the thread of him being a scammer in hes own thread he removed me from steam, he already blocked me on facebook quite a while back, so ye.. I would not trust this person at all. But most of our conversations have been on steam, (and I cant really see them because they are to old, but I can screenshot more from facebook if needed)
Some of the screenshots from facebook now.

http://imgur.com/1bfnVIv
http://imgur.com/BIKVV8Y
http://imgur.com/26O9FKP

And I haven't heard anything from him since the last I wrote to him @ facebook, neither on steam for that matter, somewhere in our conversation aswell he used my howl to win a big bet, I think it was 5k in skins in total, I told him he could pay me back from the skins, but he sold them to some guy, and never paid me. This guy is a total douche, and should not be trusted, atleast not when it gets to this high value stuff, or any value for that matter.

 

prove you were talking to crazything

 

How should I prove that, more from the screenshots from Facebook? it's not likely he has hes own name put on this page.

 

Did he ever say on Sythe/skype that he is said person. Any picture connecting him from Sythe to the profile on FB/skype will suffice.

 

We mostly talked on steam, and I have no idea how to see old conversations, but if you know how to do that I can get proof that it's him, because I remember he linked me hes sythe page on steam.

 

insufficient evidence