Nashville bombing has many unanswered questions

I can't find any information on the type of explosive, detonation device, catalyst, etc., used in the Nashville blast. We heard about the Oklahoma City explosive fertilizer for months, well after McVeigh was arrested. It was obviously very highly explosive, as there is zero left of the RV, and what looks like two separate craters from one of the overhead shots.

How did he know how to prepare the shaped charge so well as to pinpoint the wall with a small entry hole, and then down through the floors, keeping what seems to be a relatively small footprint?

How did he acquire the explosives, and where were they made?

And where is all the background and training, etc. of this patsy that gave him the ability to construct this MOAB, set up the timed(?) detonation and safely drive it around, without fear apparently? We had to see pictures of Dylan Roof drinking Budweiser, well after we knew they had arrested the right person.

Or his background in extremely high decibel, extremely clear DC powered synchronized audio systems - did he just do this in his backyard - not even a carport - and never really test it out?  No record of high end audio gear purchases yet to show us?

Why did the first reports refer to the "recording" before they could know?

May God be with each of us in these extreme times.

MARK WATSON

Sandpoint