This makes sense, and I think we're on to something...
If not an acquaintance, could she have willingly entered someone's shop on the way to meet up with Taylan and then been talked into going that person's adjacent apartment to see something? Could she have been talking with a stranger and been too trusting and lured into that person's apartment?
Also, whether or not the killer was a stranger, perhaps the witness to the white car with the hand was right. The killer may have had a white car.
Yes! And information (such as the white car) has consistently been leaked and then denied. I'd say trusting someone from a shop and being lured could be.
Although the crime scene had so many different areas with forensic team investigating - I tend to think she was murdered there - thrown and then hidden....but maybe we will get some info soon to know!