This is also what I’m keen to find out and I’mI want to know how Sarah could have gotten into this car, when the family have said (and any reasonably intelligent person would guess) that she would NEVER get into a stranger's car without knowing them. I just don't buy the "i'm a cop get in or i'll arrest you" - perhaps it was a genuine offer of a lift, but even that sounds dodge. How did she interact with him? I guess we'll find out soon enough.
Sure it will be revealed soon. Something still feels like she knew him but most of my fellow sleuths and on Twitter are not thinking on these lines so I’ve been a bit thrown off