The quote "Any man's death diminishes me, because I am involved in mankind" reflects a deep sense of interconnectedness among humanity. It suggests that the loss of any individual affects us all, highlighting our shared existence and responsibilities. The sentiment emphasizes empathy and the moral obligation we have to one another, indicating that each person's life holds value that contributes to the greater whole of society.

In Val McDermid's book "Forensics: What Bugs, Burns, Prints, DNA and More Tell Us About Crime," this idea resonates with the exploration of crime and its impacts. By examining forensics, McDermid reveals how each death—whether a victim or perpetrator—has far-reaching consequences, influencing families, communities, and societal structures. Understanding these connections allows for a deeper appreciation of justice and the human experience.