It's interesting to me as to the cause of the crash.
Oh I wasn’t disagreeing with you.
It also can go both ways - UPS uses USPS for some local deliveries - UPS dropping off some packages at the post office.
Hopefully the black boxes were not damaged/destroyed in that fireball. Something happened between V1 and Vr as engine debris came to rest well down the runway near the landing zone for 35L. They took off from 17R.