one argument raised against Slayer is that in his POV he does not brag about killing a forsaken, but revels in his killing the two AS. The problem though is that it assumes Slayer knew that the person he was killing was Asmo the forsaken and not someone he was told to off if he ever happened to come across him (i'll give you a bonus if you can throw in the dragon's court bard while you are on assignment but dont let it distract you in any way)

i think Slayer is IO by the hints dropped here and there regarding his abilities (enter TAR in flesh, enter and exit ToG).

i had thought that with Asmo saying he walked through an odd door into what he thought would be the pantry when the deed occurred. we have a hint at an odd door leading somewhere that was not where he expected, and seeing someone he recognized after a split second pause.

At this point keep in mind the doorframe TAR is destroyed. Maybe that doorframe terangreal locked the place to enter and with it destroyed the entry was no longer locked to one door. maybe any door could be used to enter. maybe Slayer sought to exit the ToG in the flesh into the palace in an out of the way place and there he saw Asmo the court bard, pulled him through and offed him.

I dont think he pulled him into TAR b/c i recall RJ stating in a Q/A that you cannot pull someone else bodily into TAR.

I believe you can pull someone into TAR if it is through a gateway though.

i still think TAR was used though b/c we had a previous hint from the wolf in the wolf dream that death in TAR is final when you are in the flesh. i think it's silly to assume that rule only applies to wolves.