Her mobile phone still hasn't been found.
Liu Yisha's home was neat without signs of a struggle. Moreover, the area was densely populated; it seemed almost impossible to abduct someone from here without drawing attention.
She must've disappeared somewhere other than home.
Judging from the situation at her home, she did not appear to be planning on any long-distance travel.
So, on the 7th or 8th, she must have left her house. Where did she go and who did she meet?
There were too many possibilities. The first victim, Zhao Feifei, was snatched while on her way home from a night shift. They lived in the same neighborhood, it was possible that Liu Yisha could have encountered the killer while stepping out for breakfast or to buy fruit.