So, not sure where this got tied up.
I killed Kemm and nobody appears to be acknowledging it.
To boot, my journal says Windego infomred us that Linder Kemm is Sworn to the God King ... ya that never happened.
I was in his attic, noticed his black mirror, and mentioned the Sallow Man to him. He called his paladins to attack me (they ignored him. Legit just wandered around like there was no fight), and now everyone's going on about this or that Lord Kemm.