Known Victims:

A1 - Briana Banks/Mirage
B - Rachel Moore
B1 - Alexxxis Tyler
B2 - Bonnie Heart
C1 - Layla Jade (+1)

What makes this difficult is that the victims are dressed from an abundant, yet ultimately limited selection of young teen clothing and accessories from Max's walk-in closet. Couple that with only Max being the protagonist and his house being the setting. Therefore, it becomes quite difficult, especially if the victim only made a handful of movies (obviously in hindsight, for very good reason).

That's why I strive to offer pictures of the victim BEFORE getting their face covered in goop/slime/tears to aid in ID purposes.
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D.