Ascension Strikes Back (Begeren Colony) claiming 8 man nightmare Vorgath and Kephess kill at 2:57AM GMT (12/3/12). (or I may have messed up... on SWTOR it says 3:57AM. Whichever is correct)
Log screeny for kephess: http://i1213.photobucket.com/albums/...NiMKephess.jpg
Video uploading right now for further proof. http://youtu.be/PDGBqv9lGpU
Don't have proof of vorgath but... who can kill kephess and can't kill vorgath? It's been three weeks XD
If you deem the proof insufficient, that's fine as well. No big deal.