Are you talking about the black eye before the final bio-parent visit? Do you remember at which point we learned about the alleged abuse of FD?
<DBM>
From In October 2015:
The twin cars (I'm going to paraphrase):
The whole time folks lived in Kendall,
NEVER had there been cars parked on Ellendale Crescent. It struck her as "out of character" and "didn't make sense." People usually park in driveways. But, since "Kendall's not the city," she disregards the twin cars (she kicks herself for not writing down the number plates).
Later, WT disappears. FFC looked by swing set. Neighbour helped. Then she realised, "
He's not on THIS ESTATE, I have to phone the police." (So, she's basically saying she had not gone to the riding school before she called). She modifies WT being gone for 15 - 20 minutes to "a very long time."
She continues to search.
She flagged down Officer Chris Ralley in the area of the twin cars after the disappearance as he was driving up Benaroon Dr, not realised that was the area she saw them previously.
The night of the sister pickup from airport jogged her memory. "When I remembered walking across the road to see Chris Ralley," that is when she realised those cars weren't there anymore. She then informed the command centre.
So, if I follow, when WT disappeared, she forgot about the twin cars. When she flagged down the officer during the search, she stood in the very area of the twin cars, but it still wasn't dawning on her. So, recalling the detail of flagging down Officer Rally made her recall a detail further back in her memory of noticing the twin cars when opening up the curtains/blinds at 7:30 AM. An inception?
And, yet no mention of the drive to the Riding School. A statement suggesting she remained on the estate pre-000 call.
***SPECULATION***
ETA: I also think accident was more likely, as if it was premeditated, FFC would have ironed out all these details much better beforehand.