Anyone has the right to copy, modify, sell or distribute a GPL source code (and/or binary). But if you do such a thing, you MUST include the source code among it.
So Daimaou did right (he did distributed the source code). If the company distributes a binary, they MUST include the source code among it, just like Daimaou did.
So the only one breaking the law would be the company (in case they did distribute any program containing a GPL routine).
Daimaou is innocent from the GPL license point of view.
Daimaou hasn't violated any law at all!
Anyone has the right to copy, modify, sell or distribute a GPL source code (and/or binary). But if you do such a thing, you MUST include the source code among it.
So Daimaou did right (he did distributed the source code). If the company distributes a binary, they MUST include the source code among it, just like Daimaou did.
So the only one breaking the law would be the company (in case they did distribute any program containing a GPL routine).
Daimaou is innocent from the GPL license point of view.