These are mostly fair points. If the note and it’s contents was something she wanted to get off her chest it would imply guilt Though or unwanted feelings and thoughts. The only potential reference to feeling guilty and ashamed is the reference to her family.
If by "imply guilt" you mean imply that she
felt guilty about something rather than implying that she
was guilty of something then maybe , maybe not. She could be guilty and not actually feel guilt about what she did (especially if in her mind it was justified) If guilty, then she would have had to have kept the whole thing secret for over a year and maybe she just wanted to get that off her chest and say yes I killed them. Not necessarily because she felt guilt or remorse about doing ibut just because keeping it secret was killing her. We don't know if she is relgious or somebody who grew up going to confession but if so that's a possibility too. Either way, if guilty, if keeing it a secret was getting too much, she could hardly tell anybody so writing it down may have been the only option she had.
it really isn’t the kind of thing a guilty person trying to hide incriminating information would leave around though at all, it would be significant to that person to say the least most especially when she knows she is under suspicion.
We don't know that she did just leave it lying around. We just know that police found it. If she did deliberately keep it for some reason then it could have been deliberately hidden, tucked away somewhere.she thought it would never be found (I'm thinking of one murder case where the murderer hid a tiny memory card with incriminating pics on it,on top of a door frame but police found it) . The only reason I can think of for intentionally keeping it , if guilty, woudl be to read it or write on it every time she felt the need to. It looks like it may have some creases so it could have been screwed up and thrown somewhere, or put in a coat pocket with the intention of disposing of it and then forgotten about. She could have been drunk when she wrote it and then completely forgot about it.
the word “this” to me still isn’t a direct reference to any accusations, it’s dramatic and warm. “I did it” would be a direct and non dramatic way of addressing the accusations. “People are better off without me” would be a much more direct reference to an understanding of victims and of right and wrong in my opinion not “the world” again suggesting she thinks the world is a good place and she a bad thing in it. The world is a big general place to think one is victimising it entirely. Again just dramatics to me.
And yet to me they don't seem out of place or dramatic at all. Frankly if she IS guilty, then the world
would be a better place without her in it, going round killing babies.
you do have to take the sentence of “wrong” with the following sentence of “police” in my opinion, suggestive of the collective understanding of right and wrong. Her words regarding “police forget slander discrimination“ etc to me suggests she thinks the investigation wouldn’t be happening if it wasn’t for those elements suggesting she sees herself as a victim in this situation Or one being treated unfairly. Suggestive she knows how to treat people correctly and without prejudice, again suggesting she knows the normal definition of right and wrong.
Apologies I forget who mentioned it but somebody pointed that rather than being part of a sentence with "police investigation", the word "forget " might actually be part of a message written in a vertical line , written after the comments about the police investigation etc
So that vertiiclaly it would read.
forget
everything
everyone
I also pondered whether the line "kill myself right now" above the word forget could be part of that vertical note too "Kill myself right now.forget everything, everyone."