So I found her social media a while back when i made my inquiry, and upon looking at it now, it appears she took her own life. She had lost her long time SO on 11/28 (and has posts about it), and if she passed on the 30th it's pretty likely it was suicide related (a comment on a photo from someone else also kinda confirms this). While this is certianly very sad and heartbreaking, at least it is not due to ODing or addiction, but rather of a broken heart.