You'd think so, wouldn't you?
But from the transcript, it's not at all clear to me that is what happened. It sounded to me like Marlene was confirming that yes, Sierra had a black and pink Juicy Couture bag but not necessarily the one on screen.
I should also add that sometimes the person interviewing the subject is *not* the talent (the star journalist on the show; for instance, on Nancy Grace, NG is the talent). An assistant stands in for the talent with the list of interview questions and basically does the interview with the subject.
Then afterwards, the TV editors splice in shots of the talent asking the questions with the original interview. So it looks like the talent did the interview but it was really an assistant.
I did a couple interviews like that and it was incredibly disorienting. Two people can say the same question and it can sound like it means two slightly (or drastically) different things, depending on which words they emphasise, etc. So I'd respond to the actual interviewer and then later, on TV, I came off sounding like I had communication problems because my answers didn't quite match up with the way the talent asked the questions.
I'm not saying that this is how Nancy Grace does her show but it's a possibility. And if so, it could account for some of the weirdness that some of her interview subjects (not just Marlene LaMar) project.