Right, so she may have had a wireless wifi connection via her computer. I assume if she was conducting any unsavory searches that evening, that she wouldn't have done it from the home computer since odds are LE would search the computer.
I wonder if it was possible that she did some web searches on one of the phones, related to whatever happened that night, and that's why she got rid of the phones and why LE is so adamant about finding them. What could be contained on the phone that they can't access via the carrier?
Web searches, maybe texts (if those were even allowable in the phones' restricted status)...what else?