The timeline prepared by JDT states that DW told her on two different phone calls he was concerned- which is what led me to believe something gave him cause for concern and he was hoping that DV contacted him directly either by calling her phone or reaching out to him so that he would know she was okay. If she was actually not someone well known to DW (as he suggested), he might have been undecided about whether a report was necessary or not. I haven't seen anything stating how long she had been in her apartment, maybe none of the friends she was with that night knew where she lived. As far as I know, she didn't work with either of the other two, so passing the phone off seems neither here nor there.
Using the idea that DW has no involvement, felt some reason for concern, and willingly went to the police, I just offered a situation that fit that scenario. I'm not implying that TT or any of his friends could or would harm her, but it's not anymore far fetched than DW managed to swing all these things.
If Car 3 isn't part of the crew hanging out that night then it only leaves 2 options- a random stranger or someone known to DV. Since her car did not move, I think more likely than not it was someone known to DV. Government at 11 at night isn't back to back traffic, it's not like DW would have gotten out ahead of her and she had to wait for a gap. She also should have/would have been in a different spot by the time car 3 got there if she were in the process of leaving. She wasn't and didn't move, even when another car pulled in which tells me she recognized the car and/or was expecting someone.
