Scipio, good morning. You give the impression of never sleeping. You say Jeremy wouldn't have feared DNA testing. Are you by any chance seeing that through your own eyes and with today's knowledge? Also, if the guilters are to be believed, he rode along the seawall on the way home -and if he didn't the creek was practically at the bottom of his garden- the mud in which is particularly thick and gloopy. Better, surely to put it somewhere it would never be found.
You are quite right, a vestige of my military career is that I sleep 2-3 hours a day if that.
Jeremy, and more importantly his lawyers, had access to records that demonstrate his own expert removed the last vestiges of blood possible and the 1989 report confirming it where the expert could locate no blood at all. So the fix was in from the outset. It was in even more though because the relevant issues is testing the blood that the prosecution and defense claimed was group A.
Sheila's DNA was in fact found so critics say this proves the group A blood found was hers not someone else's group A blood. Are they right? No because such DNA can't have been blood based so got their from something other than the shooting. This was the built in escape hatch if her DNA was found. If her DNA was not found then use the argument that this proves the blood found wasn't hers. It's a lawyer trick simply and one that could be seen through but was worth a try, there was nothing to lose. The court responded that only testing the blood found to be group A for DNA matters and that this exercise could not prove a thing. So it saw though.
Would the average person have recognized the trick? Not until the court revealed the defense expert tests prior to trial and in 1989. The prosecution was aware of the same thing as the defense though so highlighted it to the court. Sometimes even when you have equal information you get people too stupid to recognize it (or too lazy to look through it all) so it is worth a try anyway doing stunts like this if you have nothing superior to resort to.
This is what some people hate about law because they consider some of these tricks and games to be unethical. It is not easy to explain where the line is to people who are not lawyers and to be honest not even all lawyers can recognize the line some go well beyond and some but no where near all of these get sanctioned.
Only Jeremy could answer why he didn't dispose of the suppressor. Maybe he thought if it were missing entirely then people would suspect it had been used and disposed of so he thought it better to just leave in the closet and then tell his story how the suppressor was not attached when he left the gun to try to get police to think it need not be tested.