I agree both do fit, although if I had to choose, I'd say his visit was unexpected. There are too many things to consider without more information, seems like a lot of things in this story have a viable alternative explanation, so hard to even guess. ie ( staying at G-mas b/c of SS or b/c Jenn was training?) his convenient arrival time / unexpected?
I re-watched the body cam videos. these are the 3 things that make me think she is not involved.
1 when he says to give them pictures from the birthday party and she says "Yeah but I wasn't there so I have to look it up" her tone is snippy. if his visit was planned, he would know she was working and not at the party. she almost sounded like "Are you dumb?
2 Correcting the clothing. I can't figure out how someone who we know didn't see Maddi getting dressed at 8 am can override what he said unless she doubted his description, (is it true that Maddi always wore gym clothes on Mondays,?) So what is she thinking here?? does she not believe him?
3. when she said "he dropped her off and just..." drove away" it was her tone, the way she responded like simplifying it" felt like she was saying, can you believe that?
There are so many times when she looks like she is side-eyeing him, and sometimes with her ear more toward what SS was saying on the phone than to the cop at some points.
When I first heard her say all things about where Maddie wouldn't be, it didn't make sense to me, is it possible she was suspicious of SS even then? and without saying it or accusing, she was pointing in that direction.
She said she saw her at 8 am and we drove her to school. Was she covering for him or was she covering for herself? not because she was involved but I wonder if there is a family history of them saying " dont leave Maddi alone with him"
By the time they show her the photos, she probably was in denial, and shock and guilt, all the feelings that go with that reality.
here is the " he just drove away its the first 5 sec in, clipped it to the part