I keep seeing references to the "class photo" and how him sitting it out is an example of...something. Being anti social maybe?
To me, that is not a class photo. That looks like a bunch of kids from his grade were hanging out in the library and someone said, "Hey, let's take a picture" so they all grouped together. While it may technically be a picture of a bunch of his classmates, it doesn't look like any kind of official "class photo" I've ever seen. As both an avid reader and someone who actively disliked everyone in my graduating class, I would have rather sat there and continued reading my book, too.
I honestly don't think it's weird that he didn't seem to keep in touch with the people from his class. I think it's more strange when people don't move on and find new interests, friends, and opportunities outside of high school. To me, it's not weird that he didn't have many friends in his grade and that he didn't keep up them after school-it's that he never actually seemed to move at all. If he'd gained new friends, found himself a niche with like-minded people, etc. then that would make sense. But he didn't.
What I find fascinating about this crime is that there are very few things in his past that we've been able to analyze and definitively say, "Yeah, that's weird. That's a sign." There are no great smoking guns here.A few hot ones here and there, but not smoking. Lots of kids parents get divorced, people move off the grid, some people don't have cell phones (let alone smart phones), many people don't fit in with their high school, etc but they don't go on to become killers.
I am very interested in this guy's brain. Schizophrenia can be adult onset and is usually recognized in young men as they first reach adulthood. I am not implying that JP is schizophrenic (the majority of schizophrenics are not violent at all), but I DO wonder if some wires got crossed during puberty or shortly thereafter. An onset of something (I don't know what) that either wasn't there before or wasn't as pronounced. And then, along with a bunch of other things that would normally NOT affect a healthy person, a perfect storm of crazy was created.