CNN The Lead With Jake Tapper April 11, 2014 01:15:00
Now, what we know about the plane's path to the unknown. >> reporter: it has been one of the lingering mysteries of flight 370. what happened in the first few hours after it went off course. now we're learning that the plane disappeared from radar for 120 nautical miles after it made that turn and crossed over the peninsula. a senior malaysian government official and a source involved in the investigation tells cnn the plane must have dipped in altitude to between 4 and 5,000 feet. a possible sign the pilots were at the controls. but it is still unclear if the plane was in some sort of trouble...