I'd take that in two parts -
1.
'take the opportunity to clandestinely snap photos of crime scene pics and leak them into the public' - beats me, that's why I'm keen to see an investigation arrive at some facts before reaching conclusion. The timing is either coincidence or something's fishy IMO.
2.
if the photos kiboshed the defence theory of Odinist runes and antlers - that's a big 'if' and one that needs to be tested by experts rather than SM creators with a financial imperative. Whose judgement should we listen to - a know nothing Youtuber or a College Professor with expertise in that field of interpretation? (Wait, no I'm not convinced by that D assertion/ interpretation of runes and antlers either!)
That's not how I read it overall, but yes if I put my D hat on and play it out for a second (for a change lol as I'm usually pretending to be P!) :-
I would focus on ripping apart the P timeline and misuse of witness statements (yes you Liggett!); dismantling the junk science of the bullet (likely to be two experts cancelling each other out), so maybe just the bullet chain of evidence would swing it for me in terms of admissibility; and then all we have left is the confession which if I'm playing D I'd say hasn't been appropriately validated through fact verification etc.
Like I say, I'm pretending so don't take me too literally!
After my role play as D above, you must be talking about the evidence we have yet to see