「恐怖の館」快楽殺人 (Tankobon Hardcover)

Howard Sounes' approach brings a lot of nuance, but I'm curious about what motivated him to focus so intensely on their personal backgrounds and crimes.

The book paints a disturbing picture of how their childhoods may have influenced their later actions. How did others react to these insights?

It's a fine line between exploring their psychology and sensationalizing their story. What do others think about the author's approach here?