Columbine, by Dave Cullen.
This was one of my favorite books. It was incredibly heavy to read at times, but I’m so glad I did. I think some of my favorite writings come from journalists due to their thorough ability to deconstruct events the majority of us would largely rather ignore. I learned so much more than I anticipated while reading this, and I’m extremely thankful for the honest accountability the author presented throughout. Highly, highly recommended.