Per the Statement of Probable Cause, it mentions on July 1, 2014 when SW was served at the L's residence that one of the things listed they were looking for was “Erin's cellular phone” so IMO that would lead me to believe they (LE) must've felt she had her cell phone with her at the time she went missing.
Also, the Statement of Probable Cause, it mentions “sometime after Erin left with Lee, her phone was de-activated (turned off).” IMO, it seems to me from this statement that LE has good reason to believe Erin was with CL that day, which makes me wonder just how do they know this? I don't expect them to tell me or anyone else, but rather my point is, there is some reason(s) that LE is confident she was with CL that day – whether it be surveillance footage, cell phone pings, or what-not.
In the Statement of Probable Cause, regarding Erin's friend in TN – the friend “forwarded text messages from Erin to support these claims” regarding “going on a day trip together on June 28, 2014, for a celebration of Erin's pregnancy” and “Lee told Erin they were going to have a special day together and he was going to take her hunting”
From following the Heather Elvis case here on WS, there has been lots of information regarding cell phone pings, online phone records, if and when data stops versus phone being on, off, destroyed, etc. And IIRC, even if LE doesn't have access to Erin's cell phone, I think they can still not only get call logs, times, etc but also can get the actual text messages as well. Somebody correct me if I'm wrong (as I very well could be) but it seems this is what I remember being said. If it's true that LE can obtain the
actual text messages, voice mails, call logs, etc. that this may all very well answer lots and lots of questions as to WHO knew what, how much contact CL and Erin had, and so on and on....
I have seen nothing released from LE that mentions WHAT was obtained from cameras/video surveillance etc. anywhere, whether it be from the base or JTNP or wherever. I remember it being mentioned that the base had turned it over to LE. My point being, so we do NOT know who left where or when they left or who was with who or when anybody returned or didn't return.
As far as everyone's whereabouts, we don't know where anyone was at the time Erin went missing. We have a witness who saw who he felt could've been Erin getting into a “red car” but heck, we haven't heard any mention or confirmation of the red car otherwise.
And to sum it up (IMO), somebody being free to go where they want without restrictions does not in my mind say to me they are innocent of any involvement, because it's like the old saying goes, sometimes if you give them enough rope, they will hang themselves.