**wild speculation** my opinion only
Who doesn't know of (if not experienced it personally ) a story from parents of toddlers, pre schoolers about the terrible experiences with poop poop.
Naughty poop poop.
Some kids are just poop magnets....hand in their pants mucky stuff...smearing it etc.
What if William was participating in such an instance....
at 3, I imagine toilet training would be 100% forefront of mind activity and most parents are very keen to get that successfully established.
Boys are notoriously late bloomers in that field.
Knowing FM threatened to rub a 12 year old girls face in feacal matter........
Made me see red these moments in time......no question.
Present dynamic charges proves to us FF will back up and particpate for FM .
Justify loosing control resulting in death over such a thing to the police.
Good luck.....
moo