According to Millock (Horde), he was working his way through the Shartuul's Transporter event, got to the end, spawned Shartuul, and before he could get the tap on him, two Alliance Players decided to charge in and take the tap from him. This was after they sat and watched Millock work his way through the event at a distance. Why? Because he's Horde, and it's a PvP server, of course! What is troubling is that after the two Alliance players died, Shartuul's nameplate reverted to colored (untapped) at which point Millock got what he considered his own tap back, killed him, and went to loot his item. However, apparently there is some bug in the event whereby both the two Alliance players and the one Horde player were all able to roll on the loot from Shartuul as if they were in the same party, despite being of completely different factions that shouldn't ever see each others loot windows. Millock rolled need, the other two did as well, and despite his kill, and all his work up to and including killing Shartuul, he lost the item to the two Alliance players.