CNN cites a possible domestic violence narrative emerging:
The flight instructor, who survived the crash, told first responders and investigators he got into an altercation with the student pilot, which resulted in a struggle in the cockpit, a US official with direct knowledge of the investigation said.
The official said it appeared that the student pilot, whose name was not released, was frustrated with his family and had said he was being forced to become a pilot.
Plane crash in East Hartford, Connecticut, was intentional, authorities suspect - CNN.com