" Whatever they do, criminals and non-criminals act in particular ways. Some writers, for instance, use computers, others pen and paper. Some write in the morning, some at night. Each writer has a distinct style, with variations in grammar, sentence structure, and voice. "
- Ronald Kessler

This quote emphasizes that individuals, whether involved in criminal activities or leading normal lives, exhibit unique behavioral patterns that set them apart from others. For example, writers may choose different mediums for their work—some prefer using computers while others stick to pen and paper. Additionally, the timing of when they write can also vary; some might be morning people, whereas others find inspiration at night. Each writer's distinctive style is further characterized by unique grammatical choices, sentence structures, and voice.

The deeper meaning of this quote extends beyond just writers and their habits. It suggests that everyone leaves behind a trail of distinctive behaviors and preferences in almost every aspect of life. These patterns can be as varied as the tools they use, whether it's a preference for digital devices or traditional pen and paper; the time of day when they are most productive; or even how they communicate with others. Understanding these unique identifiers can provide valuable insights into individuals' personalities and lifestyles, which is particularly useful in fields like criminal investigation where identifying patterns can lead to breakthroughs.

The quote is attributed to Ronald Kessler, a highly respected American investigative journalist known for his deep dives into various aspects of power dynamics within governmental agencies, the military, and law enforcement. Kessler's work often involves uncovering secrets and revealing hidden truths about high-profile figures and organizations through meticulous research and keen observation skills. His expertise in discerning patterns and peculiarities among individuals underscores the relevance and significance of the statement he made regarding unique behavioral traits.