Ah, yes: the usual queries. We will dance to this tune, as usual.
There is only one entrance to the roof: the roof access door mentioned in the narrative. No human entered the roof without passing through that sole entrance.
For clarification, I see no reason to refuse a few of these Red:
For the purposes of this Game, glass does float on blood; it is consistent with glass falling onto the body from above.
The window was indeed open air, unless a) it was bad weather, in which case it would close via a mechanical steel grate, not unlike a retractable roof; or b) the glass panel mentioned in the narrative has been pulled over it.
However, regarding the gap offered by the window: I refuse! cacklecackle
It was plenty big for a human to squeeze through! But it won’t matter in the end; it was magic which killed him, after all! Eheheh!
I won’t refute your blue, as it stands; I have no need to! After all, it is my contention that the mentioned bowman (“someone”) is the God of the Sun! Perhaps your blue is true, after all. cacklecackle