Mike Heap, Jr.
Owner, Director of Operations
Raised in Upstate New York by a farm family, Mike enlisted in the United States Army following high school. He graduated from the United States Army Intelligence Center at Ft. Huachuca, Arizona, and was assigned to the 10th Mountain (MTN) Division at Ft. Drum, New York, in early 2001. After the events of 9/11, Mike was responsible for assisting in the preparation of 10th MTN, 1st BDE for deployment.
He eventually found his way to the great state of Texas following his time in the US Army; as he likes to put it, "I wasn't born here, but I got here as quick as I could!" He began his tenure with Texas Division of Criminal Justice (TDCJ) as a correctional officer at the Polunsky Unit, where he eventually was promoted to Sergeant on Death Row. Knowing that training was his passion, he accepted the role of Training Sergeant at the O.B. Ellis unit. He was temporarily assigned to the SHSU Criminal Justice Center to assist in rewriting and correcting TDCJ policies. Pursuing other opportunities, Mike then moved to a US Marshall detention facility as a Lieutenant, later promoting to Captain before deciding it was time for a change.
Since joining LSI, Mike has been successful in building client relationships and helping the company excel in all areas as the owner and Director of Operations.
He now resides in Willis, Texas, with his family.
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Mario Gutierrez
Account Manager
Mi nombre es Mario Gutierrez.
Hablo espanol y estoy aqui para servir y apoyar a nuestra comunidad hispana.
Mario Gutierrez is a seasoned Level 4 Commissioned Security Officer with over two decades of experience in security, supervision, and training. Currently serving at Lonestar Security and Investigations, he provides risk assessments and protection for schools, businesses, and large-scale venues, collaborating closely with law enforcement and using expert de-escalation techniques to manage high-stress situations.
Mario brings a rich background in corrections, having served as a Sergeant of Correctional Officers with the Texas Department of Criminal Justice, where he led life-endangerment investigations and provided extensive training in crisis response, defensive tactics, and cultural competency. He has also held leadership roles as a Site Supervisor with Allied Barton and as an Employee Trainer at Southwest Key Programs, where he developed and delivered training for frontline and management staff.
Fluent in both English and Spanish, Mario is a skilled communicator and former certified interpreter and holds certifications in Level 4 Commissioned Security. With strong leadership skills, a calm presence under pressure, and a deep commitment to safety, Mario is well-prepared to handle any security challenge with professionalism and integrity.
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Billy "BJ" Clark
Account Manager
Billy “BJ” Clark is an Army veteran and Account Manager with a strong foundation in trust, accountability, and operational discipline. He takes a people-first approach to managing client relationships, ensuring clear communication, reliable follow-through, and security solutions tailored to each client’s unique needs. With a reputation for being approachable and dependable, BJ works closely with clients to deliver effective, responsive security services they can rely on with confidence.
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Amanda Lindsey
South Divisions Operation Director
Amanda Lindsey has dedicated her career to protecting people, uncovering answers, and helping individuals navigate some of life's most challenging situations. With more than 12 years of experience in security and over a decade in investigations, she has built a strong reputation through hands-on experience, leadership, professionalism, and a genuine commitment to serving others. Her background includes criminal and civil investigations, surveillance, missing persons cases, insurance fraud, executive protection, fugitive recovery, and sensitive family matters, as well as managing large-scale security operations at high-profile locations.
A licensed Texas Private Investigator, Amanda previously served for three years as Head of Investigations for a respected security and investigations firm. In that role, she led investigative teams, managed complex cases, and worked closely with attorneys, businesses, victims, and families seeking answers and peace of mind. She also holds multiple Texas security certifications, including Level II, Level III Armed Security, and Level IV Personal Protection Officer credentials, reflecting her extensive training and expertise in the field.
Committed to professional growth, Amanda recently returned to college and is pursuing a Bachelor of Science in Criminology to further expand her knowledge and better serve those who place their trust in her. She believes that while experience is essential, continued education is equally important. Known for her professionalism, compassion, honesty, and determination, Amanda approaches every case with the goal of protecting her clients, uncovering the truth, and providing dependable support when it is needed most. She looks forward to continuing to serve and assist her community.