Board of Directors

Diane Tilstra

Board President and Advancement Chair, Development consultant Diane is a "re-fired" community volunteer and activist with a strong fundraising background. In her early career, she started an advocacy non-profit for victims of sexual assault in Eastern Washington. She is dedicated to supporting Washington Trafficking Prevention to fund capacity and programs by giving her time and contributions to eradicate the suffering caused by human trafficking. 


Sharonda Amamilo 

Board Vice President, Sharonda is a senior defense attorney with Thurston County Public Defense and serves in the U.S. Army Reserves. She is a champion for social justice and was recently announced a winner of the YWCA of Olympia's Womxn of Achievement Award. As the Supervising Senior Defense attorney for the Juvenile and Dependency Division of the Thurston County Public Defense Office, she has pushed for the inclusion of restorative justice principles within the Thurston County Juvenile Justice System and as a result recidivism rates are down.


Kerri Pedrick

Kerri was the previous Executive Director of Washington Trafficking Prevention but now serves Communities in Schools of Lakewood as their Executive Director. She holds a Master of Science degree in Social Work and Social Enterprise Administration from Columbia University and has served various leadership roles in community-based non-profits in Pierce County. 


Rose Gundersen

Secretary and Policy Chair, Rose is the Co-Founder of Washington Engage (now Washington Trafficking Prevention). After completing her Executive J.D. Degree at Concord Law in 2010, Rose co-founded Washington Engage. This was a result of the policy insight and passion for justice she developed from her two-year Human Trafficking Policy Research at the Washington State Attorney General's Office during law school. Together with the community Coalitions Against Trafficking, Rose has successfully built social and legal frameworks at the local and state levels to prevent human trafficking. Rose works to ensure enforcement of Washington State's strong human trafficking laws and to promote a spectrum of public health measures that address the root causes of sex trafficking.


Charlie Sheffer 

Charlie is a Production Engineering manager at the Boeing Company. He coached fencing at Salle Auriol Seattle where he was the director of junior programs for 20 years. He also owns and operates a small manufacturing business. He lives in Redmond with his wife Heather and their two Alaskan Malamutes. 


Linsey Rubenstein

Linsey has 20 years of expertise in operations and technology at companies such as Boeing, Amazon, and NASA. In her last corporate role, Linsey was Vice President of IT Business & Supply Chain Systems at the Boeing Company. She has a Bachelor's degree in Industrial and Systems Engineering from the Georgia Institute of Technology, and an MBA and a Master's degree in Engineering systems from the Massachusetts Institute of Technology. 


COL Ray Arment

In 2012, Ray Arment joined the Board of Directors of Washington Trafficking Prevention to apply his military and educational experience to fight the growing scourge of commercial sex trafficking of children in Washington State.

Ray served in the U.S. Army from 1970-1998. His 28.5 years service included:

  • Armor and infantry leadership and staff positions from platoon through division level in Germany and the United States. 
  • Senior intelligence staff officer positions at brigade, division, theater army and national level. 
  • Senior Army Intelligence Officer for Central and South America
  • Responsibility for all national military intelligence during the Bosnian War, post conflict peace implementation and the political collapse of Albania for the Joint Chiefs' of Staff. 

In July 1998, the Eatonville School Board installed Ray Arment as one of the twelve non-traditional public school superintendents serving in the United States. 

  • During his tenure the district has seen community relations, school safety, academic achievement, as well as, the high school graduation rate markedly increase.  
  • In 2006, the community voters passed a $34.4 million capital improvement bond by nearly a 70% "yes" vote - the first approved in over 29 years. 
  • All facility renovations were completed under schedule and $6 million dollars under budget. 
  • As a result of district wide curriculum revision, raising academic standards and physical plant renovations the high school graduation rate improved from 56% in 1998 to 90% in 2010.