How would they be aware? What he did wasn't a good thing? He wouldn't tell them? His wife wasn't aware, his children weren't aware, the servants that were working for him weren't aware, and the knights working for him weren't aware.
They weren't aware of this one, and they weren't aware of the previous one he did. And as said before, he had plans of killing Aiden, but at the right time.
Once Aiden was gone, then Ethan would be so broken he wouldn't care about being a chief anymore, he might step down from political matters. He wouldn't care about it anymore, his son was dead.
That was something Asher wanted, he was angry that Ethan was a chief. If Ethan was still a low-ranked one, he wouldn't have any problem with that. But the fact that Ethan made it to an average-ranked chief was still making him angry up till now.
..What kind of hatred is this?