Not sure if this has been mentioned yet, but something interesting has been found about Audrey.
One of the drawings on Audrey's tumblr references someone called "Sydney"
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The last tiktok she posted (in which she played with a basketball) was a tribute to this Sydney
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An anon found an obituary about a Sydney from Nashville Tenessee born 1995 (Audrey's age) who passed away recently in 2022.
https://lewisandwrightfuneraldirectors.com/tribute/details/3758/Sydney-Sims/obituary.html Sydney played basketball, presumably with Audrey, in middle school.
Audrey commented on her obituary wall saying she will "miss her forever" and that she is "free now" and bought the family flowers.
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The passing of her friend definitely could have contributed to her mental instability.