Couple of things on this.
1) this was a question on Jeopardy, "In this game, player "Leroy Jenkins" got his whole team killed. Thats not the exact question that was asked on the show, but it shows how This video made WoW very popular.
2)The Chicken Leroy is referring to at the end, "atleast I have chicken". Is what he is having for dinner. The whole situation is Leroy was AFK (away from Keyboard) getting his dinner, during the whole planning of the assult. When he got back he figured everyone was just wanting on him to enter the room. Notice he is sitting down, then jumps up and runs into the room.
3)In the game after you die, you have to move as a ghost to your dead body and then revive it. BUT if you are still surrounded by bad guys they will simply kill you again.....See why they are so pissed at him...lol
I discourage anyone from buying and playing this game...its too addictive.