Perhaps this has been discussed prior; if so my apologies. But I'm still hearing that the Malaysians are saying they'll enter the Captain's home "if necessary".
As a retired Captain I'm not casting aspersion, but with so little known here and so many lives involved, I would think that the appropriate authorities would have searched his home long ago - to include the computer(s) used to run his home simulator.
When you're totally responsible for hundreds of lives you give up a certain amount of privacy in a case such as this. It just goes with the job.
Despite cultural politeness, respect, and abhorrence for loss of face, the circumstances demand that everything possible needs to be examined ASAP.