事實的猜想

the camera outside fitting room shows there were a couple of bra when she enter the fitting room, and one of them was grey, there were none when she was out. the tags were found later on (during the 3 hours she was in the security office) in the dressing room, which (the cutting marks) matched exactly the bras she worn when she was caught.

Without these facts, Macy would not call police.

That was the fact she did not want to discuss.