“Police say the Lyft driver is cooperating with investigators. In a statement, Lyft told CBS News there were no irregularities in the ride Lueck took, and that it ended at the destination she entered in the app. The driver continued taking other customers immediately after dropping her off.”
If she lives in an apartment, uses social media, and has lots of “friends,” someone among them might have known her itinerary and was either loitering in or around her apartment. Or a predator (a neighbor she might even know) might have followed her up after seeing her leave the Lyft.
Since Lyft/Uber rides are documented in the app the driver’s story can be easily verified. If the ride ended where specified, and there is documentation of subsequent fares for the driver after the drop-off, it would appear that whatever happened to this young woman occurred afterward the ride.
I guess a key datum is how soon after this drop-off did the driver pick up the next fare.