Meet the Board Members

Tammy Nixon
Tammy Nixon joined the security industry with Guardsmark in Long Beach California in the summer of 2000 after serving 12 years in the United States Navy as a Seabee. While in the military Tammy served on several committees such as: Sexual Assault Victims Intervention, Equal Opportunity Board, DARE, and Victims Witness Protection Program.

Additionally, while in the military Tammy was able to obtain her B. A. in Criminal Justice from Chapman University and later received her M.B.A. from the University of Phoenix.

Tammy currently holds the licensing for Nevada for Allied Universal Services Guard Services. Tammy has transitioned over to Allied Universal Services as the Regional Vice President Western Region. The territory covered in this Region is: New Mexico, Arizona and Nevada.

Tammy enjoys her family, her dog, reading and running.
Timothy Bezick
Board Member

Tim has nearly 30 years of FBI management and investigative experience as a Special Agent Accountant, Field Office Supervisory Special Agent, FBI Headquarters Supervisory Special Agent, FBI Headquarters Unit Chief and Acting Assistant Section Chief.

He has directed investigations, supervised personnel and fostered personal growth through an ethical leadership style and outstanding interpersonal skills.

In his decades of experience with the FBI, he has developed liaison relationships with numerous law enforcement agencies, intelligence agencies, public safety agencies, private sector corporations and victims of crimes.


Tim has conducted, directed and managed investigations of counterterrorism, public corruption, kidnappings/child abductions, foreign counterintelligence, violent crimes and white collar crimes.

Tim was a member of the FBI’s SWAT/Sniper team in various FBI field offices. Upon retiring from the FBI, he was employed by CACI, a defense contractor headquartered in Arlington, Virginia, as a member of their management team responsible for counterintelligence and counterterrorism. 

Tim enjoys fitness training and golf in his spare time.

Rick Brown
Board Member

Rick served a total of 29 years in Nevada law enforcement with two different agencies.  During his career with the Douglas County Sheriff’s Office, Rick served in a variety of positions including jail operations, patrol, investigations, coroner investigations and SWAT.  With the Nevada Department of Public Safety, Rick served in the Investigation Division – Major Crimes Unit, Nevada Threat Analysis Center, Office of Professional Responsibility, and Polygraph Examiner.  Rick was trained as a polygraph examiner after retirement and went back to work for DPS as an examiner for three more years. 


Prior to entering law enforcement, Rick served as a “Green Beret” for the US Army 5th Special Forces Group where he was part of a hostage rescue “A” Detachment.  Rick was responsible for explosive entry for the team as well as a weapons specialist.  Twenty-three years later, Rick joined the Nevada Air National Guard’s 152nd Airlift Wing, where he served as a Security Forces Craftsman for four years.


Rick holds a license as a polygraph examiner and he conducts law enforcement pre-employment testing for a variety of agencies in Nevada.  Rick is the third generation of four generations of soldiers in his family, as well as the second generation of three to have served in law enforcement.

Katherine Cortez
Board Member


Katherine is the daughter of Guatemalan immigrants making her the first-generation US born citizen.  Katherine graduated with a Bachelor’s Degree in Criminal Justice and Sociology from San Diego State University.  Shorty after gradation, Katherine relocated to Las Vegas, NV in January of 2000.  As an at-risk child herself, Katherine utilized her drive and passion towards mentoring at-risk youth and young adults.  Katherine began her career as a Clark County, NV Juvenile Probation Officer (CCJPO) in July of 2000.  Throughout her career, Katherine participated in several departmental committees such as the Use of Force, Policy/Procedures, Gang Committee, juvenile detention initiatives in accordance to national trends and guidelines, and cultural/diversity Committees.  Katherine has also been a certified Defensive Tactics and Oleoresin Capsaicin Instructor and has held a Peace Officer Standards and Training (POST) Category II certification for over 20 years.

In 2008, Katherine and four other juvenile probation officers began formulating an association specific to CCJPOs.  In 2011, Katherine and the other founding members successfully established the Juvenile Probation Officers’ Association (JJPOA), recognizing all CCJPOs as Peace Officers in the state of Nevada, subject to NRS 289.  Katherine served as Treasurer, Board, and Labor Team member since inception until January of 2020.  During her terms, Katherine and the Labor team successfully negotiated and ratified JJPOA’s first few Collective Bargaining Agreements with Clark County,NV, setting the platform for generations to come.  Katherine has also lobbied during Nevada’s Legislative Session(s) with other law enforcement associations and conservation groups. 

Outside of her professional life, Katherine can be found participating in community events advocating public awareness on matters such as LGBTQ, Leukemia/Lymphoma, Stroke and Heart Disease, Childhood Diabetes, Mental Health, Autism, Anti-bullying, Senior, Family and Juvenile Services, and Law Enforcement Community Outreach engagements.  In addition to being a member of the JJPOA, Katherine is also a member of the Nevada Association of Public Safety Officers (NAPSO), the Communication Workers of America (CWA) Local 9110, and the American Federal Labor and Congress of Industrial Organization (AFL-CIO). 


Robert “Bobby G” Gronauer
Board Member
Robert “Bobby G” Gronauer is a decorated United States Marine Combat Veteran of the Vietnam War. He has over 41 years of law enforcement experience, five of which were served with the Baltimore City Police Department and twenty-four years with the Las Vegas Metropolitan Police Department (LVMPD). Throughout his police career, assignments included corrections, patrol, detective bureau, and he retired as a Sergeant. Upon retirement from the LVMPD, Mr. Gronauer was elected as the Las Vegas Township Constable and served three four-year terms. He is currently a small business owner and highly motivated to expand his business. Mr. Gronauer’s qualifications include comprehensive field training and extensive experience in safety patrol, security details, undercover investigations and public-service activities. He currently holds licenses in the categories of Private Investigator, Private Patrolman and Process Server.