She was attractive and alone and missing...the worse was assumed, with the usual suspects rounded up, I'm sure.
Turns out, she had missed an icy, mountain curve while driving home on a dark and stormy night and wound up down an embankment, invisible from both the road and cell towers.
They found her body still in her car. She didn't make it, but there have been other cases like this where the driver was found in time to save them.
There was one like that where a little girl found a driver hidden below the road through a vision.