The Rending of the Veil

from Google Images

I wonder how one would explain the fact that, if Jesus’ crucifixion took place at either of the two most popular locations, how any of the Gospel writers could know that the veil of the Temple was torn from the top to the bottom. If the writers of the Gospel wrote only what they witnessed or what other disciples witnessed (cf. Luke 1:1-3), how was it known how the veil of the Temple was torn or even when it occurred on that day? After all, both popular crucifixion sites are found on the other side of the city and behind the Temple. The only possible location for the crucifixion to have taken place, and for the disciples to actually see what occurred in the Temple was east of the city on the top of Mount Olivet!