Commenting to bump this up.
The difference between how this versus the Christina Morris disappearance was handled is shocking, despite the similar situations.
See the comment above about social media. There's an address associated with the NAMUS zip code ( 75231 ) posted by Chalice's father around February 11th, and the type of location that it is.
If it comes out whenever the records for this case can be FOIA'd that the Dallas police did NOT request the security footage from that location, or luminol that location and the car that she was last known to be in, we all should be deeply disgusted with them.
Related:
Washington Post Maps Unsolved Dallas Murders Note that little orange area highlighted to the Northeast of University Park? That's exactly where the NAMUS-listed zip code is.