No one's in the entry hall now. I bet they're all dead. GO STAIRS.
Upstairs appears to be even bigger than downstairs, which is quite an architectural rarity, especially for a Victorian era house. But hey, who am I to point out the Williams' mistakes? I have a whole bunch of options as to where I can go from here: EAST, WEST, NORTH, or up the STAIRS to the attic. I've decided to go WEST.
I'm at a doorway. Guess I'll go in, huh?
OH MY GOD, A SECOND DEAD BODY!!! OH, THE HUMANITY!
It's Dr. Green. That's another name I can cross off the list of suspects. Not that I actually need a list, mind you. The killer is obviously Joe. There doesn't seem to be anything else I can do in here, so I'm gonna head out into the hallway and see how far WEST it goes.
I find myself at another doorway, one that's identical to the last. God, I love recycled screens. Let's see who's dead this time.
No bodies this time, just another note. Let's see if this one says anything useful.
Oh man, I'm sure glad I read that note. That was awesome. Back to the hallway.
I can't go west anymore, so I'll check out the eastern part of the hallway.
Sweet! Another doorway!
SWEET JESUS, SOMEONE JUST TRIED TO KILL ME!!! 
Fortunately, my would-be assassin throws like a girl. I guess I could be pretty pissed off about what just happened to me... but it's hard to stay mad, when there's so much beauty in the world. Like the free dagger I just picked up. You know what time it is now ? It's time to kill Joe!
Once again, KILL JOE refuses to work. Perhaps I'm going about this the wrong way. Let's try USE DAGGER...
I killed Joe! Let's take his shovel!
This shovel should come in handy... when I'm digging for Mystery House's hidden treasure! The killer may be dead, but I still need to find those jewels. I better finish exploring that eastern hallway.
Past that room where I almost got daggerized, there's yet another doorway. I am getting pretty fucking sick of these doorways.
Shit, it's a third dead body. But I already killed Joe. Oh well, I guess he killed this person before I killed him.
See? There's a blond hair on the body, that's proves that Joe did it. Wait a second... Joe's a brunette. That means he wasn't he really WASN'T the killer; he was just a total dickhead. Rest in peace, you stupid bastard. Since the killer is a blond, it has to be either Tom, Daisy, or Bill. All three are still alive, so it could be any one of them. But more importantly, I've finally found a female body. I'm gonna hit that like there's no tomorrow.
But she looks so peaceful! Damn you, Mystery House! WHY CAN'T YOU JUST LET ME ENJOY SOME GOOD CLEAN NECROPHILIA?