his involvement in the project even giving code is all the evidence you need it's a scam.
Where exactly did he "give code"? When there were delays in Crypti he complained a bit. When the Bter thing happened, he did a little FUD. He has problems running his node, problems getting transfers during the mainnet launch. No one that's part of a scam is going to be posting that sort of stuff.
Perhaps you should be transparent and post that you tried to extort BTC from him to not start this sort of thread.
And where's your "proof"?