I want to make sure a pit trap kills the player and he wont get stuck in there, how do I create an invinsible kill trigger?

Attach a script to your trigger that has the following:

event OnTriggerEnter(ObjectReference akActionRef)  if akActionRef==Game.GetPlayer()	 (akActionRef as Actor).KillSilent()  endIfendEvent

I think that would work.

Worked perfect. Thank you!

Used the script with a trigger box to make an unsurvivable fall.

is it possible to use this script on a trigger box that calls a teleport?

I don't see why not.

and what is the code for the teleport?