ok, Ill engage with the obvious troll. K7 didnt share anything with any details, but I have a suspicion you would just say he faked the letter if he did post it.
As to why everyone is trusting what he is saying, it is because K7 has been a good dev for over 5 years at this point. Over these 5 years he has built up a large amount of goodwill with the community, being punctual with deadlines, doing weekly progress reports, apologizing the few times he doesn't hit a deadline, engaging with the community, etc. There is also good evidence to support that K7 is still passionate about making games, he just finished a prequel for this game, the whole point of creating the prequel was to be able to continue making a game while he doesn't have access to his main equipment.
So I dont really get what your argument really is, you think K7 is lying, but why?
Also, the German justice system (actually the German government in general) is known for being super bureaucratic, so its not like this situation is completely out of the ordinary.