body count?

I can help you out:

Ed- While everyone was getting ready to enter the train, Ed gets run through from behind with a sword and dies while everyone's laughing thinking it's a prank.
(the killer takes his costume and shoves underneath the train...OUCH)

Jackson- While drunk, he enters a bathroom to meet what seemingly looks like Ed until the killer smashes his head against a mirror. (the killers also takes his costume.)

Mitchy- The hot babe of the group. She thought she was gonna have a good time with "Jackson" until he tricks into going in an empty cabin to get her throat slashed.

Mo- While the magician was performing some tricks, he was stabbed in the chest
off-screen while the train conductor and JLC were trying to figure who's the killer.

Doc- While desperately trying to lock himself up inside an empty room, he realizes too late that the killer is in the room with him and gets decapitated with a knife
and JCL finds his head in an upper luggage compartment.

Crew member- While searching the train for the killer, his body is later seen in an empty room sitting in a chair with a knife sticking out of his chest.

The Magician (a.k.a. David Copperfield)- JCL finds him inside his own magic box with many swords protruding out of him. (possibly after finding out that his female assistant was a crazed killer)

Charly- Uncomfirmed, when JCL finds out that Kenny is the killer she enters the brakeroom to find Kenny dressed up as Charly.

Kenny- While going crazy after sharing a kiss with JCL, the conductor enters the room in time to violently shovel him out of the train and falling into a frozen river.

Hope that helps.