Last night, I listened to a segment of Darkness Radio that detailed the case. Dave Schrader brought up a few things about one of the girls' folks. This is not to condemn all parents who share similar interests, but methinks that the home life should at least be looked into, considering that the girl couldn't discern fantasy from reality.
The father, who was mentioned the most, is a death metal fan, and this was only brought up because he posted something on Instagram months prior. While out for dinner, his daughter drew a stick figure of Slendy on a napkin with crayon and he posted it on Instagram and proudly proclaimed that only his daughter would draw Slendy on a napkin.
Thus, he was fully aware of his daughter's obsession, but neglected to talk to her about it. How did he not know that his daughter had been planning a murder since freakin' December?!