I have a theory on this:
IMO, after RA was questioned on
13th October 2022, LE pulled the "Bridge Guy" witnesses in and showed them a photo line up that included a photo of RA (possibly using circa 2017 driver's license photos?). I think that the both of them identified him from that line-up and ergo why the Defence got the answers they did to their "hypothetial what-if" questions they didn't like the answers to (
the insistance that it was RA whom they saw sayeth the individual being questioned).
Of course, no one knew RA had even been questioned about the deaths of the two girls - Abby & Libby - nor that he had been taken into custody until the news broke on
October 28th 2022.
The witnesses did not see his photo on TV, or in the media, in a paper etc ... nada prior to making any idenfication of him IMO.
If this holds to be the case, the Defence is certainly able to ask the actual witnesses upon their cross-examination whether or not LE somehow or other 'influenced' them into identifying RA as the individual they saw, but I'm thinking they won't like th answers they get to that question either.
All IMO of course. We'll find out at trial!