No it wasn’t missing. You are getting your news from the wrong source. Black boxes aren’t built in a way that they ‘memory card’ can just be ‘missing’. They only recovered the voice recorder so far and they got the recording off of it of the pilot pounding on the door. That combined with their detailed understanding of how the door security works, and that you can’t ‘accidentally’ lock someone out, has led the officials to conclude it was a deliberate act. I was wrong about them having the flight control input data yet. Since the actual officials investigating this say it was a deliberate act then are you telling THOSE people to give it a rest? Because clearly you know more than them.
Talk to any accident investigator. They will all tell you that with any investigation you never draw any conclusions until all the information that is retrievable has been retrieved. This is why these investigations can take years to piece together. This investigation is nowhere near that point now. Is there a suicide note? BTW, I've heard/seen it reported 3 different places this morning that the FDR was virtually destroyed and the data card was missing. I'm not the one reporting that, so don't chastise me. Check with the media.