Hmm, ok. So again the person that killed is the only person that can lie.
Given that Ransu and Lacey couldn't hide it on their person, that means they couldn't have done the theft because:
So even if they somehow managed to turn off the lights remotely, they would not be able to hide the spear in another room because (Music Room, Lounge, Storage, Entrance) were all guarded and Ransu or Lacey couldn't have hidden the spear in storage, for example without an accomplice.
I definitely don't think they would have had enough time to run upstairs.
Every guard in starting guard position would have had to enter the white room to go upstairs to the power room to switch off the lights, but Vangel/Lacey/Ransu definitely would have seen that? So maybe there is a 9th person at play. Maybe a guard is lying and actually started upstairs?
For the murder, it seems that they unlocked the window somehow and performed the murder that way because Lacey says in purple:
In post 0, Segaco wrote:Lacey: "No one has walked out the door since we got in."
Unless Lacey is lying and she actually commited the murder.
But Westy's purple statement indicates that the murderer did not escape through the window.
In post 0, Segaco wrote:Westy: "And from what I can see there are no footprints outside in the snow. The blizzard stopped long ago, so it is impossible for more snow to have covered possible footprints."
So I think our murderer is either Lacey or Westy?
For the disappearance, Lacey herself obviously couldn't take a part in the disappearance without an accomplice so that can be ruled out. I agree that the timing seems to eliminate Westy, Easty and Ransu (not enough time). George and Northy are also accounted for and couldn't have done the disappearance.