Yes, the theories sometimes take on a life of their own which is wrong imo. But impressions are formed from reading stuff the victim or the accused put out into their world or the world (as it often turns out when your name hits the media). Amazing to me are all the varying interpretations because our own experiences get thrown into the mix making our interpretations subjective (without even realizing it).
My impression from Heather's tweets is that she wanted to be in a meaningful relationship, admitted to making bad choices (guys who lied or let her down), wanted a connection with and to cuddle someone, retweeted statements or song lyrics that were thoughts that reflected situations in her own life (possibly providing insight as to her feelings at the time).
The tweets could be considered similar to a journal assuming people select tweets because they relate to situations or thoughts when they tweet them (or, on a less serious note, thinks whatever tweeted is funny).
Heather didn't seem shy about announcing her angst and/or wrongdoings. She put herself out there and her followers must have been somewhat aware of HE's personal details to understand her tweets. One time when Heather tweeted "preggo my eggo", a friend of hers replied (concerned) right away. At the time, the tweet was cast off as being a joke. Someone's tweets could reflect real issues, be sarcastic or be for the purpose of drawing attention from others or a specific person.
Heather tweeted something about wanting to be found (if one disappears) which is very haunting under these circumstances. I think, and jimo, Heather desired genuine attention and wanted to find love. Really, who doesn't?
She was also aware she wasn't going about it the right way. She said so herself. That's the first step to change.
Where am I going with this? Umm, sometimes wearing a tough facade is hiding a very tender spirit. The question is why did Heather feel the need to act so brazen when that's not who she really was imo. She appeared to be actively rebellious but it wasn't working for her and she knew it. When her friends didn't show up (or someone didn't) for her birthday, instead of expressing her hurt feelings and disappointment, she expressed f the people who say they're your friends (or something along those lines) and that she was always there for her friends. A whole other topic for analysis involving defense mechanism modes, developing discernment and exploring the truth about oneself.
An incomplete profile of a person can be gleaned after reading the choices they tweet. Because the profile is incomplete people who knew Heather would need to explain or confirm and fill-in the rest of her story.
We've heard Heather was creative and loved the arts but her tweets don't reflect her interests other than her work and some relationships.
In a trial, the two sides always try to paint a picture of the victim and the accused afaik. That's one of the reasons why there are always so many objections and calls up to the bench and separate hearings to decide what comes into the trial before the jury hears anything. I've never watched a trial devoid of humanization.
How can anybody conclude that motive isn't important?