I'm confused by this reply, so please bear with me.
Is this a recent account from a witness who recently came forward after recognizing RE and who recalled babysitting for D/L and this baby? OR was it a witness statement in one of his case files from way back and the witness can't be re-interviewed because they are now deceased?
I ask because even I can remember kids I sat for over 40 years ago. I may not remember everything, but remember how old I was (which would give me the year), the kids first names (except for two but I know someone I can contact to find out) and where they lived. I don't think those details are too taxing on a memory or asking too much of a witness to recall and I hardly have a photographic memory Truly, if someone can't remember those vague of details, I would have to question that they sat for them at all.