What activates grunt in chancel? [SOLVED]

[mansarde]

I can't, for the life of me, figure out how "servant_grunt_4" is being triggered in "22_torture_chancel.map"
As soon as you're up the steps and stand before the swing door which leads to the chancel, "servant_grunt_4" is triggered.
But no matter what I remove, he still triggers! I removed every area leading up to this door, I even removed every area behind the door, in case something is "look at" activated.
And nothing in the script of that level gives me any hints as to what activates him. Especially when I removed everything the player would walk through on the steps in front of the door.
I'm completely baffled, nothing works, "servant_grunt_4" is always triggered.
I know I could just remove or deactivate him, but I want to know HOW exactly he is activated.
I just can't figure it out, it drives me crazy!
Can anybody tell me how he's being activated? Please?