India, Sept. 8 -- Federal investigators examining why an Amazon cargo jet barrelled off a runway at Miami International Airport and into vehicles, killing at least five people, are likely to focus on a crucial moment in the landing: whether the plane touched down too late to stop safely.

Video of Sunday's landing appears to show the Boeing 767 remaining airborne well down the runway before touching down. Aviation experts said investigators will seek to determine exactly where the plane landed, whether it was beyond the normal touchdown zone, and why the pilots did not abandon the landing

Investigators will also examine the plane's speed and braking, weather and wind conditions, the aircraft's mechanical condition and other factors that ...