According to this statement TL says he talked to KC on the morning of July 16th.
Snipped from pdf document 2, page 22. (p. 282 of discovery docs):
Anthony Lazzaro interview with Detective White:
A Which baffled me you know. And the fact that she stole money from her friend too and I just like, bombarded with that information it was just too much. But ah, yeah I so I was asking her (Inaudible)...her a little bit this morning I was like, if you had fifteen ..you had this fifteen thousand dollars in the bank account. You know in another bank account that you say you have.
Q Uh-huh (affirmative)
A Why would you need to take money from your friend's account? And she goes I needed for some kind of backup plan. I was like, what kind of backup plan you talking about? And she's like, oh don't... I was like, I don't want to hear about no back plan. I don't want to hear anything that you have to say about stuff like that. And she's like, oh no nothing like that. I'm like, I don't... just don't say anything about that I don't want to hear it.
I've always wondered why she would freely discuss a back up plan on this date. He didn't want to go there either...almost like he knew what she was referring to.