Newly released video shows the moment a Frontier Airlines plane struck a person on a runway as it was taking off from Denver International Airport.The airport said that the person was killed in the collision. The person, who has not been identified, jumped the airport's perimeter fence and was hit two minutes later while crossing the runway, the airport said.Smoke was reported in the cabin after the collision and passengers were evacuated using slides.  The airport said 12 people reported minor