Leadership

Bart Butler
Founder and CEO
Bart Butler is the Founder, President and CEO of Rock Solid Security, Inc. which he established over 30 years ago in 1983. As a tenured security expert, Bart holds a long list of event security credentials and accomplishments including 35 years in entertainment security and crowd management, and 22 years as a Venue Security Director for hundreds of artist and venues, nationwide.
Due to his extensive entertainment experience, Bart is highly regarded as a respected authority in the field of event security. Throughout his tenure in security guard services, Bart has acquired national prominence with courts across the United States as an expert witness in in the field of crowd management and event security litigation. In numerous cases concerning moshing incidents, crowd crush occurrences and security company liability cases, Bart has often been asked to testify.
A graduate of the Academy for Venue Safety and Security (AVSS) and active member of International Association of Assembly Managers (IAAM), Bart is a highly sought after national security consultant and speaker called on to address topics such as festival site safety and design, venue set up and protection, crowd management, and entertainment security staffing. In addition to carrying an Armed Security License for the State of Tennessee, Bart also holds several security designations including that of Certified Unarmed Security Instructor and Certified National Rifle Association (NRA) Instructor.
As the president of the Mathew W. Butler Foundation – an organization that helps disabled individuals live a better life with their own independence – Bart truly believes in supporting his home town of Nashville and is convinced that “the best investment one can make in the future is by giving back to their community.” Bart lives out that commitment by coaching middle and high school rugby teams and supporting many local charities and causes.
Bart attended Middle Tennessee State University where he studied Recording Industry Management and Psychology. His most prized possessions are his wife, Debbie, an Assistant District Attorney in Nashville, and his son. They make their home in Murfreesboro, Tennessee.

Lee McKennon
General Manager
As the general manager and overseer of Rock Solid Security financials and operations, Lee brings to the table a wealth of tenure and knowledge in the security field which includes 25 years of hands-on experience in security, business management and business administration.
Prior to joining forces with Rock Solid Security, Lee’s leadership skills were honed serving in the United States Marine Corps Intelligence Division Headquarter of the Marine Corps, where he held a top secret clearance and worked with expert military officials in business practices and procedures, communications, and computer applications.
Lee is a graduate of the Academy for Venue Safety and Security (AVSS), and has earned credentials as a Certified National Rifle Association Instructor, a Range Safety Officer, and also holds an Armed Security License for the State of Tennessee.
He and his loving wife, Heather, make their home in Murfreesboro, Tennessee.

Mary Bauman
Operations Manager
Mary Bauman is our Operations Manager here at Rock Solid Security. Prior to joining us, Mary worked several years as an executive assistant in office management, HR and staffing for the State of Tennessee.
Mary oversees all things legal, compliance and talent acquisition related, along with guard coverage, scheduling, training and certification. Mary is a graduate of Draughons Jr. College and loves camping, reading, and spoiling her grandchild.
She makes her home in Nashville, Tennessee with her husband and son.
Jozef Butler
Assistant Operations Manager
Jozef Butler is the Assistant Operations Manager at Rock Solid Security, Inc. where he has been employed for over 10 years. He plays a key role in overseeing daily operations. His responsibilities include scheduling, payroll management, client billing, quoting services, and coordinating equipment rental logistics to ensure seamless execution across all company functions.
Jozef earned his Bachelor’s Degree in Business Management with minors in Finance and Economics from Middle Tennessee State University in December 2022. He brings a strong background in site operations and logistics for a wide range of events, making him a valuable asset in high-pressure, fast-paced environments.
A proud Nashville native, Jozef still calls the city home—and you’ll often find him cheering on the Tennessee Vols in his signature orange.
Hannah Hattendorf
Human Resources and Scheduling Manager
Hannah is the Human Resources and Scheduling Manager at Rock Solid Security. She oversees the Key functions such as employment, Support, training, maintaining records, and any other employee activities. She handles scheduling for all guards according to their availability and client needs.
She has 11 years of experience in multiple leadership positions and various customer service roles, 6 years of hands-on experience in the security Industry in various positions before she became the HR manager for Rock Solid Security. Working in the field for Rock Solid has given her a better outlook on what is needed to take on this role and will continue to commit to creating efficient systems and supporting both staff and company growth for the foreseeable future.
Hannah enjoys being outdoors, reading, horseback riding, spending time with her nieces and nephews and going on adventures with her 6 dogs and 2 cats. Currently she resides in Goodlettsville, Tennessee