The segment was very short, with not much detail. I was surprised that no mention of her scent stopping at the end of her driveway was made. Instead the sheriff (can't remember her name) made it seem like Sierra was taken beyond her driveway, closer to her bus stop. She also made it seem like it was a random abduction...
The video of her walk to the bus stop showed just how exposed she would have been, and drove home in my mind how wrong it was for her to have to had walked that walk...
Others who saw it, please correct me if I'm wrong about this.
I didn't see it, but it doesn't surprise me. They don't rely a whole lot on the scents the dogs pick up unless it's a cadaver dog, especially if a day or more has already passed.
In re: to the bag and it being neatly placed after being strewn: I have mentioned that option in the past, but I really think someone would come forward and say they did that, especially if they thought their finger prints would be on or in the purse.
I also think someone would have probably done more investigating had they found it like that, maybe even turned it in to LE.