Mrs. D was Bethany’s nurse at Radley. Mrs. D and Bethany’s dad were having an affair. Both of these were revealed in 5x12 via Bethany’s recordings and personal files at Radley.
The affair between Mrs. D and Mr. Young is what lead Mrs. D to give Bethany luxuries such as signing her out of…
Two people were at Mona’s house!
With that amount of blood and no weapons, I suspected that two people were there - and this confirms it! Two different hairs.
The first one is most likely Alison: the color matches hers perfectly, and so does the lenght
Second: could it be Cece? (all the Paris references)
I think you are completely right - I even posted about this here!
Who do you suspect was the second person? A blonde, like Cece, or someone wearing a wig?