Malaysia: Someone shut down the communication systems of the aircraft

According to the reports of the international media, two U.S. officers say that someone, who was in the missing place, deliberately shut down the communication systems.
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ABC News and Daily Mail broadcast that probably someone, who was onboard shut down the communication systems of the aircraft.

U.S. experts believe that this new theory could be true, because they have evidences, which show that the two data systems, the data reporting system and the transponder that gives signal to the ground radar shut down at different times.

It is estimated, that the first shut down at 1.07 in the morning, while the second 14 minutes later, at 1.21.

The same source says that this probably excludes the possibility of accident or damage of the missing Boeing.