I will add to this .....
I train up my pets, in the Yamato(sp) Mines on the Shadow Ore Elemental. I go lure the near one to the entrance and then start the training. I rarely to never do this unattended as I will use the other computer to do mining, Lumberjacking etc.
Anywho, along comes a player and has in tow, 6+ Warriors, 2 Priest, 2+ Earth Elementals and at least 1 Dull Copper Elemental and dumps them off at the entrance.
Ok, I got the characters name etc and it was in the Journal as well. I exit the Dungeon and person is Recalling out.
I went to Luna and talked to an individual that should know or at least be able to have some information on the individual. They had just loged off. We talked about the situation and agreed to let it go as probably some mistake. I go back to the Mines Area peace the place and start killing things with the Primary GD.
The next day, the same scenario by the same individual. To the best of my knowledge the Guild did what they had to do and I sent a report in.
Some how it would not surprise me if it were the same person.
Any how I have not had any recurrence of the problem since then.