Like she already knew that Madeline wouldn't be coming back.
I find it odd about her saying SS came into the room to walk the dog and she helped him with the leash. I can't believe he would take the time to walk the dog with Madeline in the car, dead.
And then she skips over everything she was doing after her doctor's appointment until she drove to the school to "wait" for her daughter.
MOO
And then right around 12:54, she says SS has only dropped Maddie off "I think only once or twice before. I'm not too sure". Shortly after, when the investigator asked her why SS dropped her off a block from school, JS answered "because she asked and she's embarrassed of his car". When the investigator asked her when Maddie expressed that, JS laughs, and says
"Multiple times. When we've expressed that Stephan might pick you up from school, she's like, can he pick me up far away, can he leave me here, I don't want to be seen." Her words are contradictory and she lets her guard down by laughing. To me, she's obviously lying. MOO.