I was concerned about the contents of this book when I bought it. I was worried that it was going to be very biased, but it was not. This was a well researched and well rounded tale of the true events of the Columbine High School shooting. I have mixed feelings about situations like this. People always feel terrible for the people who lose their lives and those left traumatized by the events, but people rarely seem to think about the perpetrators. I am always interested in the motivations behind people that commit these crimes and what pushed them to do it. What was the final straw? It is tragic that two teenage boys took the lives of so many and emotionally wounded so many more, but it is also tragic that promising lives took such a wrong turn. They had families too, and people always like to dismiss the pain of their families or blame them. Sometimes, it is truly not the fault of the family, not to mention they have lost someone that is now a villain. The whole situation of mass shootings is terribly common and never endingly tragic. I cannot imagine living through something like this, or losing my friend or classmate. This situation is just beyond my grasp, truthfully. I appreciated the work that went into this book, and I would recommend it for any true crime fan. This book was featured on The Last Podcast On The Left (Episodes 178/179).