This actually occurred last Tuesday, on May 13th, but we just got around to updating our front page with this news now. Derig Cinderaxe and the mob after him, Tavekalem, were defeated by the forces of Aegis.
We've been working on the next mob after these guys, Grendish, and have made some good pulls (best pull to about 30%). Right now however we're also making some adjustments to critical roles in our roster, so there may be some lag in getting this kill while we reorganize, gear, learn, etc. for the roles and the fight.
Lots of good work all around from everybody and we'll see more mobs in the Temple of Veeshan dead soon!