It just makes me recall that Nancy Grace comment about cat hair being found.
Also makes me wonder if, same as the Giglo case, the DNA (we know the Prosecution ran DNA tests as it came out in the detaied financial reports for the case) was tested vis FGG (Forensic Genetic Geneaology) and found to link to another member of RAs household erby leading to LE running the male names through their tip database only to discover, belatedly, that RA had actually previosly tipped himself in to them as being at the scene, at the time of the crimes, via CO DD. Then the call him into the station for that 2023 interview ... IMO??