Let's list some mysteries in this case! Here are 3 of mine.

1. Why did 2 killings happen within the span of one week?
2. How did so many people get radicalized i.e. going from being essentially nerds to people seemingly willing to commit pre-meditated murder?
3. What happened with Zajko and LaSota between Zajko writing about LaSota threatening to murder Zajko, and then Zajko's parent’s killings (which she is a suspect for)?

There are a lot of journalists and documentarians who are inquiring about this, wanting to write articles and make documentaries. 

What are people's heuristics for how to speak well with journalists and to choose whether and which journalists to talk with? Here are two that I've heard:

1. Small-town journalists tend to be much less politicized than those who write for a national outlet.
2. It's good to always be "off the record" when speaking, and then say you're happy to provide written quotes on-the-record via email afterward. This means you can (a) be deliberate in your wording, and (b) have proof if they misquote you!