The Admin's Murder

A murder committed. An older admin, one who wasn't well liked by many, so who could it be? There are so many reasons for someone to kill him, or could it be a Watcher by chance? Grian doesn't know what to think when he wakes up later than normal due to his roommate panicking. With no memory of last night and just a pounding headache, he opens a door to find his old highschool 'friend' had passed. Everyone is putting fingers and just wants to go home, but they can't until the murder is revealed.
So, who did it? Let's find out.

Crossposted from A03, this is my own work and if you want updates quicker, I would check it out there. Yes, I know the usernames are different but it's my stuff.