I read an article recently that I wished I hadn't. I happened upon it by chance at a local pharmacy while waiting for a prescription to be filled. The article is ultimately an interview with a man convicted of a crime who's horror and senselessness are beyond measure. In the aftermath, I find myself searching for ways to cope with the knowledge that these things happen with chilling frequency. Below I've listed some resources that attempt to explain this darkest side of humanity.
Why Good People Do Bad Things: Understanding Our Darker Selves
Evil: Inside Human Cruelty and Violence