I live about 5 miles from the Parker marital residence. In the last 20 years I have crawled in and out of every cave hole I could find within 100 miles. I find it highly unlikely that SP, or anyone else for that matter, could predictably blast a cave hole shut without being immediately discovered. There are people in the caves 24 hrs. a day, 7 days a week and 365 days a year.
Blasting limestone is an inexact science at best. Even someone that does it day in and day out knows that when you set off a charge, anything can happen. Its way too unpredictable to use as a method for permanently hiding a body. And, when a charge is set, and you are underground, it is obvious. Someone is gonna go looking for the idiot trying to bury them alive.
Walker County is remote, relative to the big city. But, if you were to set a blast in the middle of no where, in the middle of the night, every nosey neighbor within 50 miles of ground zero is going to know it. And, they are gonna be yaking about it and finding out what it was.
Besides, the C4 that was found in SPs locker had been there as long as the dirty socks and petrified ham sandwich that kept it company. I really do believe that to be true. It was no big deal when someone gave it to him and he just thumped it into his trashy locker hole.
Heres what I think. There are dozens, if not hundreds of old wells and sink holes in this area. The typical one would be in the middle of some thick-assed briars. Maybe an old piece of tin lay on top, maybe not. If a rabbit dog were to step in the wrong place, all you would hear is a fading howl. These holes can go straight down for a hundred feet before hitting the water table.
Something goes down, it dont come back up. The aquifers are huge, deep and inaccessible. Its like having a door to hell. Something could get going down there and end up 20 miles from the drop point in a matter of hours. Even if you knew for a fact that something went down the hole, you aint never gonna find it. You just aint .
No digging. No explosions. No evidence. Just
.. Gone.
That is what I think. I dont have any idea where Mr. Sams hole might be, but I would bet hes got one.
Here one minute and gone the next.
Otoh.