I killed the jedi and his padawan, now the game is asking me to talk to Thendys Noori. He/she isn't on the bridge where the marker is and i can't find any other levels above or below.
Great quest. I enjoyed it up to this point, but this sucks!
Update
I boarded my ship and went to Dromund Kaas. Turned around and went back. Some of the mobs had respawned, but the quest was still completed to where I was to talk to Thendys. She was there and I was able to talk to her.
Finished the quest and got my legacy.
It seems that patience and trying different things works around the bugs.
Good luck everyone and don't give up.