Missing Malaysian plane flew 5 more hours after its communication system shut down?

U.S investigators believe that the
missing Malaysian Airlines Flight 370
communication system were shut off
manually and that the plane flew for at
least 5 more hours after it dropped off
the radar based on analysis of signals
sent by the jet's satellite
communication link.
U.S counterterrorism officials are
pursuing the possibility that a pilot or
someone else on board the plane may
have diverted it toward an undisclosed
location after intentionally turning off
the jetliner's transponders to avoid
radar detection, according to one
person tracking the probe.
Three separate tracking devices shut
down during the flight, 14 minutes
apart, and continued to fly after the last
known contact, which means the plane
was intentionally diverted. But by who?
The pilots or it was hijacked and
diverted? If this theory is to be
believed, then it means the plane
landed somewhere and everyone is safe
and alive? Very unlikely!
Malaysian authorities said yesterday
that they have several "pings" from the
plane's data system, transmitted to
satellites in the five hours after the
plane's last communication, suggesting
the plane flew to the Indian Ocean,
which is in the opposite direction of the
plane's original route. U.S govt have
now sent a search party to the Indian
Ocean