I know the body won't be available to actually check out unless we obtain it for next month, but... the characters can see it, so unfortunately. Here I am. How visible is it exactly? Are there any visual clues people would be able to get right now or does the glass obscure that somehow?

(For example: tears in the clothing or stains of anything other than the blood in the image, that might be noticeable and suggest specific injuries, locations the body's been in, and/or that any weapons were used.)

Also: are the display cases numbered and/or marked in any way? And if not, are students able to inquire somewhere about who donated what?

Editing for one more: Now that classes have started again, can anything be found in the school that will display the current year? For example worksheets, club applications, or any other paperwork the characters may receive, or even belongings of the NPC students. And if so, what year is it?