TW for su*c*de (you can kinda guess)
-
-
-
-
-
-
-
-
-
-
If I remember right, Vanessa's files in the therapy tapes were tampered with (as with kinda all of them).
I take the backstory as essentially what happened with the Aftons (Vanessa could absolutely have a troubled home life but I'll say not exactly as the file said), so basically William had the kids lie about her so he could get custody, and shortly after... Well, she killed herself.
This was something kinda implied and it just worked with FNaF 4. Evan probably loved his mom, and now she's not only going to be unable to see him but now she's also dead.