On-site examination of the wreckage, surrounding markings on trees and the ground indicated that the aircraft impacted terrain in a steep nose-down attitude and banked to the left. The aircraft was in a landing configuration.
The left wing had separated outboard of the left engine, and both the wing-tip pods had separated from the wings. The remaining fuel tanks were also breached and no fuel was found, however a smell of aviation fuel was noted by emergency responders at the accident site. There was no evidence of fire.
Examination of the engines and propellers indicated that the left engine was producing no power and the right engine was likely producing low power at the time of the accident.
Consistent with the eye witness accounts.
The lesson to be learnt at this stage, I would suggest, is that monitoring the fuel distribution in a light twin should be given a higher priority in a pilot's workflow.