Welcome back:
If the pedal was to the floor, it could have been a few things. First, no brake fluid. If there was a leak, the fluid would have drained from the system. Second, a rusted steel brake line may have ruptured when the brakes were applied. Third, a rubber brake hose which attached to the brake calipers may have ruptured. Also, the master cylinder could have failed. The interesting thing is the rod that you refer to. There is a rod that attached to the brake pedal and goes to the master cylinder. Honestly, I have never see one bend. Could he have hit the brakes that hard?
Without being there, it is hard to determine the cause. If, however, you have access to the vehicle, take a look under it for any wet spots which may indicate a brake fluid leak.
I hope this helps. Let me know if you have other questions.
Take care,
Joe
Thursday, April 11th, 2019 AT 5:36 PM