The first is Alessa ("a shadow at the end
of the hallway...
I spin the carousel...I stole something precious (Cheryl))
The second is Mary...or perhaps Maria ("a human caught
in monochrome dreams (the video tape?)
I scream to wake up (This could point to Maria..)
my voice drowns deep underground
only the dead can hear me,
see me" (Notice how Maria is never with you when you encounter Angela, Laura, or Eddie...))
The third is Heather("a sentinel of awakeness (realizing who she is?)
I hold truth like a torch
shadows flicker before me...")
This is what I think...
The first is Alessa ("a shadow at the end of the hallway... I spin the carousel...I stole something precious (Cheryl)) The second is Mary...or perhaps Maria ("a human caught in monochrome dreams (the video tape?) I scream to wake up (This could point to Maria..) my voice drowns deep underground only the dead can hear me, see me" (Notice how Maria is never with you when you encounter Angela, Laura, or Eddie...))
The third is Heather("a sentinel of awakeness (realizing who she is?) I hold truth like a torch shadows flicker before me...")
But I also could see the third being Vincent.