Meet The Staff

Meet The Team

Sharnai Fisher

The Founder

Sharnai Fisher is the founder and managing investigator of Fisheye Investigation Group. Sharnai, a United States Air Force veteran currently serving as an Air ForcePolice Officer, has been working in the criminal justice field for over 12 years. While working in the criminal justice field, Sharnai has dealt with Electronic Corrections, Fugitive Recovery, Fraud Analysis, Law Enforcement as well as acting as a Bail Bond Agent. Mrs. Fisher holds certifications in interviewing and interrogation methods as well as extensive Fraud Analytics training. Sharnai has also worked undercover for Fortune 500 companies, combating internal and external organized crime within each organization. Another aspect of her service is that Sharnai has assisted with child custody cases resulting in successful outcomes for her clients. Sharnai’s investigations into criminal and civil matters provide in-depth information that will help achieve the positive outcome of each case she has handled.

The territory she has covered includes: Arizona, Texas, Mississippi, Arkansa, and Tennessee.

Tonya Davis

Managing Investigator 

Tonya Davis is from Memphis, Tennessee. Tonya earned a bachelor’s degree in Criminal Justice (2014) and has over 12 year of experience working in the Criminal Justice field. Ms. Davis has expertise in the specialized areas of security, fugitive recovery, process services, and private investigations . She holds certifications that include: hand guns, stun guns, shotguns, tasers, batons, chemical agents, and handcuffing. Tonya has completed continuing education in the following course: Surveillance Strategies, Understanding Homeland Security and Terrorism, Ethics and Professional Responsibilities. In the course of her work, Tonya has also made over 200 arrests and assisted her clients in several child custody cases that resulted in a win. The territory she has covered includes: Tennessee, Texas, Colorado, Mississippi and Arizona.

Stephen Plessner


Stephen was born and raised in Wyoming, and began his career in Law Enforcement in 2004, holding multiple positions at his hometown Sheriff's Office. Stephen gained valuable life and career experience there as he was able to work directly with inmates, the courts and out on patrol, totalling more than seven years.  Stephen also worked part time as a firefighter for nine years, and in his free time enjoys the outdoors, and traveling to different parts of the country. In 2013, Stephen left the Sheriff's Office to fulfill a goal of living in and experiencing other parts of the country. Stephen entered into the private sector, in Seattle, Washington before working his way up the ranks to hold the title of Division Investigator and moving to Phoenix, Arizona and Boise, Idaho in a corporate role. After gaining more than six years of corporate investigation experience, Stephen most recently relocated to Arizona to continue his goal of working investigations and to raise a family in his favorite state. 

Chrystal Cooper


Chrystal was born in California but spent the majority of her life raised in Arizona. Chrystal earned her Bachelor’s Degree in Criminal Justice Forensic Investigation in 2016.Througout her studies she completed training in: Ethics of Criminal Justice, Law Enforcement Operations and Report Writing, Introduction to Homeland Security, American Corrections, Victimology, Juvenile Delinquency, Criminal Law, Criminal Procedures, Introduction to Criminalistics, Advanced Crime Scene Forensics, Forensic Photography, Family and Domestic Violence, Child Abuse Interview and Interrogation and Introduction to Criminal Profiling.

Chrystal gained valuable career experience as well as the opportunity to utilize her training when she worked with the Department of Child Safety for three years. During her time with the Department she worked with unsafe and abused children, situations with domestic violence, illegal substance abuse, inmate and criminal conduct. The majority of her position was to ascertain whether children were safe in their primary residence and if not, place them in a safe situation while working with caretakers to ensure they had the appropriate skills to regain custody of their children and ensure their safety. 

Chrystal has always wanted to make a difference in people’s lives and strives to do so daily. She is encouraged by her loved ones and is grateful for their support.

Lisa Rangel-Bencic

Billing Specialist 

Lisa Rangel-Bencic brings with her 20 years of experience in administration/operations, staffing and social services working alongside many Fortune 500 companies. Lisa’s expertise is evident in the multiple offices she has managed within the staffing industry as well as being a pillar in her community with her charitable and social work. She is a powerful force in her professional life and uses her positive attitude and tireless energy to encourage others to work hard and succeed in their endeavors.  

Lisa is inspired on a daily basis by her family and her desire to make an impact in society. She values family, friends and God above all else. In her free time, Lisa enjoys spending time traveling, working out and thrifting.