Dr. Snell’s keycard remained on his person, within the living room, all the way through 11:45. In addition, recall this portion of the narrative:
[quote=“ghagler, post:2, topic:1030”]
Everyone who entered that room that day had already left by 11:45, with the sole exception of the victim. Excluding the hole in the ceiling, there were no other entrances to the steel-ringed room but the front door; and while the front door itself wasn’t constantly watched, all paths to this inner sanctum were.[/quote]
This, as mentioned previously, may be considered as Red. So how, then, could his keycard have been stolen?
By magic, of course! Eheheheheh!
I will be gracious and clarify more:
No non-human object related to this Game could access the roof by any means aside from the roof access door. The same goes for humans.
Dr. Snell was murdered between 11:50 AM and 12:00 noon of June 19, 19XX, as told in the narrative; this will be referred to as “high noon” in subsequent Reds. These times correspond to the same times, timezone, and other ways of measuring time as told in the narrative. Every location relevant to the murder is referred to in these same times, timezones, et cetera, besides Egypt, but the murder does not take place in Egypt.
As for your theory:
Of all humans capable of murder, only the three interviewed characters (Dr. Kenneth James Arnold, Professor Jameson Wren, and the General) could have committed this murder.
But how did they get to the roof?