I think that Simon did not realize that you teleported, and neither did I at that point, but then you came back 5 seconds later which made it very obvious. You should have had your stuff returned from the first time that he killed you, and since no one made the attempt to give your stuff back then I will happily reimburse you with items you had since in the end, Simon also regained the items he lost to the teleportation kill that you did.
