Assistant Principals
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Kristie Dornan is entering into her 24th year in education. She holds two undergraduate degrees in Microbiology and Molecular and Cell Biology with a double minor in Biochemistry and Math. She holds two Masters degrees with one in Molecular and Cell Biology emphasis on the genetic basis for disease and another one in Educational Leadership. Kristie began her career in the Twin Rivers District at Grant High School before moving on to the Natomas District. She set her roots down here at River City High School where she has found a supportive staff, community and student population that she is committed to supporting to the fullest extent. She comes with experience in a multitude of areas in education including WASC Chair, MTSS, PBIS, Athletics Coach and Director, Assistant Principal, PLC and RTI, AVID, Induction Mentor and certified Conflict Resolution trainer. She has been awarded several accomodations including CIF Coach of the Year 2022, Teacher of the Year for the Natomas District and Excellence in Education for the Sacramento Region amongst a few. Outside of her role in education, Kristie enjoys hiking, running, playing most sports, avidly reading anything not nailed down, spending time with her family, Texas sports teams and random walks without purpose. |
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Dr. John Armes is excited to begin his 14th year in education. His career is marked by a profound commitment to education and a distinguished academic background. Dr. Armes holds a Bachelor of Music in Music Education, a Master of Education in Education Administration, and a Ph.D. in Higher Education Administration. Dr. Armes began his career in the Madera Unified School District, where he was the Director of Choirs and Piano. In 2016, he transitioned to Thomas Downey High School in Modesto, California, as the Director of Choirs and Theatre Arts. He later joined River City High School as the Director of Choirs and Piano, before transitioning to the role of Activities Director in 2023. Beyond his educational roles, Dr. Armes is actively involved in community and professional performing arts organizations. An accomplished performer, he has taken lead roles in numerous productions across California and has had the honor of performing at Carnegie Hall in New York City. Outside of his professional pursuits, Dr. Armes enjoys traveling, cooking, camping, and attending live performances. His diverse interests and experiences enrich his role as an educational leader, bringing a unique perspective to his work and interactions with students and colleagues. Dr. Armes is honored to be part of the River City High School community and looks forward to continuing his partnership with students, families, staff, and the greater West Sacramento community to ensure every Raider has the opportunity to thrive. |
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Heather Sherk It is a privilege to introduce myself as your new Assistant Principal. I have over 20 years of experience in education, rooted in strong relationships and the belief that high expectations create the conditions for all students to grow and succeed. My educational journey began after earning my Bachelor’s degree in Biological Sciences from UC Davis and a Master’s degree in Marine Biology from Western Washington University. Early in my career, I worked as a marine educator and naturalist, and I developed a passion for fostering young people's natural curiosity. This passion led me into the classroom, where I taught science and AVID at Othello High School in Washington. Some of my most meaningful experiences there included teaching Honors Biology, supporting 9th-grade AVID students, and facilitating student-led parent conferences of my advisory class. During my time there, I developed an appreciation for the importance of developing student voice and ownership.
For the past 12 years, I have been proud to serve the Wheatland Union High School community as both a teacher and Assistant Principal. In that time, I have worked to strengthen instructional practices through Professional Learning Communities and build systems that promote student success. I have led efforts to improve school culture and student engagement through PBIS, expanded student leadership opportunities through ASB and Link Crew, and implemented systems to increase student accountability and maximize learning time. Throughout my work, I remain committed to creating inclusive, student-centered environments where every student feels seen, supported, and challenged.
I am incredibly excited to join the River City community and look forward to getting to know each of you. I cannot wait to spend time on campus with students, support our dedicated staff, and partner with families to continue building a positive and thriving school environment.
Outside of school, I am an avid reader, a nature enthusiast, and a diehard Niner and Giants fan. I have three grown children: 26-year-old Sydney, and twin 24-year-old boys Brady & Jacob. My husband and I love exploring the El Dorado National Forest with our dog Wylie at every spare moment. Thank you so much for welcoming me. I am truly honored to be here.
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| Leanne Linares is a proud River City High School alumna and Buck Scholar who brings more than 20 years of experience serving students in high school education. Her background includes mathematics education, adult education, and athletic program development, with a strong focus on curriculum, instructional leadership, and intervention programs that support student success.
Throughout her career, Leanne has been committed to creating equitable opportunities for all learners. In 2024, she was honored with the Carlston Outstanding Teachers of America Award for her work supporting underserved student populations. She has also served as a member of the International Baccalaureate World Schools Organization, the California State School Board Curriculum Review Panel, the Buck Scholars Association Board of Directors, and the Above & Beyond Organization's Teacher Leadership Academy.
As Assistant Principal, Leanne is excited to return to the school that helped shape her educational journey. She is passionate about building strong relationships with students, staff, and families while fostering a supportive school culture where every student has the opportunity to learn, grow, and thrive. She is honored to serve the River City High School community and looks forward to supporting the outstanding work of its students, staff, and families.
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