Peter J. Killeen received his Doctorate in Counseling Psychology from Argosy University, Arlington, VA. He completed a Master's Degree in Counseling Psychology from Loyola College, Baltimore, Maryland, and a Masters in Theological Studies from The Washington Theological Union, Silver Spring, Maryland.

A former police officer with the Port Authority of NY & NJ Police Department, Peter has worked as a police psychotherapist with the Port Authority of New York and New Jersey Police Unions, as well as an Assistant Ombudsmen, an Employee Equal Opportunity Mediator and Wellness Counselor for The Bureau of Alcohol, Tobacco, Firearms and Explosives since the early 1990's.

He was involved extensively with the rescue and recovery efforts following the September 11, 2001 attack on the World Trade Center followed by years of trauma counseling provided to the First Responders.

He recently authored four books for the law enforcement professional on ways to personally integrate mindfulness, resilience, and meditation into daily life in order to live a more sustainable healthy lifestyle. The Operation Longevity textbook works in tandem with the Operation Longevity Personal Journal. Recently, the Operation Longevity Personal Stories and Meditations book was released.

Dr. Killeen has presented extensively throughout the country to law enforcement agencies and academies on topics dealing with the impact of law enforcement stress, the physiology of stress on the body, the integration and importance of the recognition of the mind-body connection and recognizing the benefits of living a more balanced life through wellness and resilience.