I've been enjoying reading everyone's posts. Here are a few of my random thoughts:
1. It's somewhat like the Chandra Levy case--pretty woman mysteriously disappears. At first, you suspected the known figure who said they were "just friends" , then it turns out they had sex, then it turns out to be perhaps a random killer.
2.. Everything pointed to Taylan: last to see her, was supposed to meet her, may have said he walked her home on the 20th, may have said he went to her rental on the 21st with someone else (witness/alibi?) to look for her.
3. Early on, a man from the region on websleuths suggested it was a random murder by a homeless person, which seemed unfathomable: but what about the white car leaving perhaps a body? what about LE saying it looked like a professional kill? what about it looking to LE like she was brought there? couldn't someone have framed the homeless by wrapping her in a person's blanket left in the area? what about the drowning of a woman similarly clothed in the same time period?
4. but does a professional kill someone with a rock? did SS think since it was daylight on a somewhat well-traveled road, that she could venture, climb up and photograph the walls? was she then pulled in for an unconsummated sex act, and in her struggle to be set free, killed with a rock?
So many unanswered questions. Thanks for thinking about it all.