I agree w/your post. I didn’t watch the Dateline episode; however, the Final Argument podcast is well worth a listen, very insightful, and it gave info not known publicly.
Ive forgotten so much about this case so perhaps I should not even respond but will go ahead anyway.
iirc, some of my thoughts...
What stood out for me is that the DA took the day off from work.
Why? Wonder if someone contacted him and asked to meet up to discuss a case...
Perhaps this person told the DA they wanted to disclose crucial info needed for a case being worked by DA.
So they meet up at the shops location.
It’s private at this point- but of course DA still brings his laptop to document the meeting w/said person(s).
If the woman sighting is credible, maybe she was part of the set up to put the foul play into motion...
Unfortunately, I dont think the truth will ever come to light.
jmo