"Truck 1 and company" were cleared to cross. A few seconds later, "truck 1" was instructed to stop.

Edit: Confirmed truck 1 was the one involved in the collision. Previous text: It is unclear which truck specifically was involved in the crash. In photos, the truck has the number 35 on it, not sure if that would preclude it from being identified as "truck 1" verbally.

FWIW the whole group received permission to cross. The instructions were to "Truck 1 and company", not just Truck 1