I went through Basic COMBAT Training (as it was then called) at Ft Leonard Wood also, during the hot Summer of 1978. I had not been an athlete in high school nor someone who exercised and I’ll bet my basic was much rougher than his. I had no big problem getting through it and went on to be an intelligence analyst, just like this criminal.
Now that was a rush.
I gained weight in basic. But then I was air force.
I too spent a long hot summer Lost in the Woods. The most welcome shower I ever had was when my entire platoon was hosed by a fire boat while we stood naked on the bank of the river. We even had soap and everything. What a thrill!