Do you have foundations that he spoke the truth? He is wrong at times you know, even if he is reliable. Marotta speaks often about the mercato, he has spoken about Pereyra, Drogba, Sanchez. You really can't take Di Marzio words as a fact. If he was right all the time our squad right now would be really amazing with 50 worldsclass players

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Ok, so you think that Di Marzio invented that story about Shaqiri and I think that there is grain of truth in it.
Let's stick with our opinions.
I didn't know that you defined own definition of "fact", restraining it to Angelli, Marotta or Conte statements. You had the right to do it, your will. But, if you are so strict, eager to have 100% certain information, you need to know that your description what you think is a "fact" (or in another words: confirmed information) is incorrect after all. Moggi, Marotta and Agnelli used to say a lot of stuff, because of different reasons (to mislead competiton, to draw the attention of the press, etc) and at the end it didn't influence our mercato movements at all (a lot o cases: Pogba, Zidane, Henry). If you want 100% certain information you should wait for official statements. Aside from them nothing is a "fact".
That's why we believe some other sources like Di Marzio. I don't think he is flawless, though.