I believe he was (maybe still is) a conservation officer if I am not mistaken, so assume his work might take him to the Delphi area. But that is only an assumption on my part. also public records w IN DNR show him being given an award for something in 2007 and he was then stationed in district 3 which would include the Delphi area I believe.
The statement RA gave to DD in 2017 very early on in the case took place in a parking lot outside a local grocery, I am only assuming that took place in Delphi. I don't even think he was working the girls' case per se. He may have been pressed into assisting with LE in looking for witnesses in those early days but don't think he was actually part of the investigation.
from an article in 2022
Baldwin and Rozzi write that Allen gave a voluntary statement in February of 2017 to, “a Conservation Officer outside of the local grocery store,” detailing his presence on the Monon High Bridge the day Libby German and Abby Williams were murdered, that Allen was never contacted again by police . . .
https://fox59.com/indiana-news/defense-and-law-enforcement-spar-over-delphi-murders-investigation/
I think DD thought it was a big nothing, wrote up some notes, turned them over to the actual investigators and went on his merry way, never giving it another thought.
all of the above is JMO