NTSB says footage shows left engine detaching from wing during takeoff before deadly UPS crash

After being cleared for takeoff, a large plume of fire in the area of the left wing occurred during the takeoff roll. The plane lifted off and gained gained enough altitude to clear the fence at the end of runway 17R. Shortly after clearing that fence, it made impact with structures and the terrain off of the airport property.A post impact fire ensued which covers approximately almost a half of a mile. And we have viewed airport CCTV security coverage which shows the left engine detaching from the wing duri ...