And I'm satisfied. Elven ears are a valuable ingredient. I finally got them.
Added 13 minutes later
Still, Hasumi doesn't have to be the one the conspirators sent out to assassinate someone today. She doesn't resemble the first of the conspirators.
However, the information is presented in such a way that, yes, Lady Aravella may be innocent.
The newspaper doesn't mention that journalist from last time. Either they want to maintain the intrigue, or it really was the right clue.