About Sentinel Associates
Sentinel Associates are committed to delivering professional, reliable, and results-driven investigative and litigation support services. Every client engagement is approached with a steadfast commitment to integrity, advocacy, and understanding.
Our mission is simple: provide accurate information, dependable service, and documentation that withstands scrutiny.
Founder & Principal Investigator – Scott McKenna
Scott McKenna is a veteran of the United States Air Force, where he began his career in law enforcement as a military police officer. During his service, he was entrusted with high-level security assignments, including Air Force One, Air Force One Bravo, Priority A resources, and other sensitive and mission-critical assets. His military service included two desert campaigns and multiple classified operations, requiring the highest standards of discretion, professionalism, and accountability.
While on active duty, Mr. McKenna developed a strong foundation in investigative work, marking the beginning of his career in private investigations in Omaha, Nebraska. Following his honorable service, he declined offers from multiple agencies to pursue his long-term goal of completing his education and establishing an independent investigation firm.
In 1998, Mr. McKenna founded Sentinel Legal Services, LLC, later expanding operations through the acquisition of Kansas City Missouri Process Service and Private Investigations. Since that time, he has provided investigative and process service support to high-profile law firms nationwide and internationally, as well as numerous well-known commercial organizations.
His professional experience spans complex litigation support, corporate investigations, and personal matters requiring discretion and precision. Sentinel Associates reflects Mr. McKenna’s enduring commitment to assisting individuals, attorneys, and organizations at every stage of litigation and protection, regardless of the scale or complexity of the case.
Our Client-Centered Approach
We understand that each client's needs and circumstances are unique. That's why we take a client-centered approach to each case, tailoring our services to meet our clients' individual needs.
Military Experience / Background for Mr. Scott McKenna
Military Service & Security Background
Mr. McKenna served as a Security Police Officer (AFSC 3P031) and Security Specialist (AFSC 81130) in the United States Air Force. In these roles, he was entrusted with the protection of some of the nation’s most sensitive assets and missions.
His duties included providing security for Air Force One, Air Force One Bravo (National Emergency Airborne Command Post – “Nightwatch”), AWACS, Cobra Ball, Landshark, and other high-priority aircraft and resources. These assignments required advanced operational awareness, strict adherence to security protocols, and absolute discretion.
Mr. McKenna also participated in the Emergency Services Team (EST), the Air Force’s equivalent of a tactical response or SWAT-style unit. In this capacity, he was involved in high-risk response operations, base defense, and special security functions.
Throughout his service, he supervised and performed a wide range of security operations, including:
- Weapon systems security
- Air base ground defense
- Protection of personnel, aircraft, equipment, and facilities
- Resource management and critical asset protection
- Armament and equipment training
- Pass and registration operations
- Information and classified material security
Specialized Training & Operational Experience
Mr. McKenna completed extensive training in areas critical to both military and investigative operations, including:
- Legal considerations and use of force
- Deadly force policy and confrontation management
- Physical apprehension and restraint techniques
- Antiterrorism principles and threat assessment
- Air Base Ground Defense (ABGD) concepts and execution
- Systems security operations and resource protection
- Nuclear, Biological, and Chemical (NBC) defense
- Military operations in urban terrain (MOUT)
- Law of Land Warfare
His weapons and tactical training included operation, maintenance, inspection, and deployment of multiple weapons systems, as well as live-fire range operations, preventive maintenance, and safety compliance. He received instruction in individual and squad-level tactics, patrolling, communications, navigation, and coordinated response operations.
Translation to Civilian Practice
This background laid the foundation for Mr. McKenna’s investigative career—instilling discipline, attention to detail, legal awareness, and an uncompromising standard for accuracy and documentation. These principles continue to guide Sentinel Associates in every investigation and service performed today.
Mr. McKenna can be reached directly at