Answer: It should be noted that Koenig was able to know about the Adnan's Case through Rabia who told her and he tried to know about the case because she kept asking.
Explanation: What is Asia story?
The story is about Adnan and Hae, who were both in relationship before everything went sour.
However, Koenig could verify this after Rabia narrated everything to her because the case is everywhere.