Okay, maybe i can counteract to that approach of pessimism here?!
CB boasted of getting rid of evidence. How can someone get rid of forensic evidence? It is not enough to destroy a body or parts of it, right? That person must destroy also DNA, to destroy every possible evidence forever.
How to do that? Some perps used cooking. That destroys the DNA in the tissue, but not likely in bones, teeth, etc.! Pigs? Okay, just a little bit fantasizing, he? Remembering JC case around the corner earlier or maybe watched "Hannibal". No safe solution IMO.
What else? Burning it? No chance to destroy DNA! So you have to cremate the forensic evidence. Crematories burn bodies for about 90 Minutes by at least 1200 degrees celsius. The remains will be just a pile of ash and the DNA is destroyed forever. But you need special ovens to to that!
The isolation from fridges burns like a torch (Greenfell Tower e.g.). A burnig pile of tires reaches also temperatures up to 1400 degrees celsius, so firefighters use to let them burn down controlled, due to no useful technique to extinguish these fires.
And now check the reports, what he was seen to carry frequently to the box factory and has been reported to to very often.....