Last month Apollo Nida's attorney filed a "waiver of indictment", which basically says he's waiving his right to a trial and it's usually filed when a plea deal has been hammered out. From what we know, the waiver is filed shortly before an official plea is entered before the judge. And that seems to be what is going on here. The waiver documents were filed on April 24th and today it's reported that Apollo plead guilty to some of those initial charges. It looks like it's safe to say he's worked out an agreement but we don't know any further details until they're filed and available online – hopefully tonight or tomorrow.