Amelia Norfleet Dorn, Founder, Director of Curriculum and Instruction, and Lead InstructorIMPACT Founder Amelia Norfleet Dorn

Amelia Norfleet Dorn has over 20 years of experience in the fields of self defense and empowerment. Through IMPACT International, she has taught personal safety skills to thousands of adults and children.

She founded IMPACT Personal Safety of Colorado in 2006 and currently serves as its Director of Curriculum and Instruction. Her greatest passion lies in primary-prevention programming like IMPACT’s EMPOWERED Family Workshop and rehabilitation programs for convicts in federal and local correctional facilities. Amelia also facilitates Our Whole Lives (O.W.L.), a comprehensive and values-based sexuality education program for all ages. She is the proud mama of two very EMPOWERED children.

Rob Cooney, Suited InstructorSuited Instructor Rob

Rob Cooney is a professional dancer who spent years training in both martial arts and acting. After a chance encounter with an IMPACT graduate, Rob realized he could use his talents to help empower survivors of abuse and harassment and felt called to begin his journey as a Suited Instructor. Because no one should ever be made to feel helpless, Rob is committed to doing everything he can to help those on their own personal journey of empowerment.

Nicholas Fabrizio, Suited InstructorSuited Instructor Nick Fabrizio

Nick is a Suited Instructor who celebrated his sixth anniversary with IMPACT Personal Safety of Colorado in 2018.



Krista Hanley, Lead InstructorLead Instructor Krista Hanley

Krista Hanley grew up in Littleton, Colorado and graduated from Columbine High School in 2000. She has a Bachelor of Fine Arts in Photography from the College of Santa Fe. After college she continued living and working in Santa Fe, New Mexico, having fallen in love with the culture and landscape.

In 2010, Krista returned to Colorado and settled in the Denver area. She has a career in art management that gives her access to fascinating and important art objects. Krista loves to write and create art.

“IMPACT transformed my life,” she says. “As a trauma survivor, I did not feel safe in the world, I struggled with PTSD and anxiety in social situations, and I always expected the worst to happen. IMPACT gave me the freedom to exist. Knowing I can protect myself and speak my truth has empowered me to advocate not only for myself but for others.”

Katarina Lacey, Program Coordinator

Kat Lacey is originally from Columbus, Ohio, and she moved out to Colorado to pursue an undergraduate degree at CU Boulder. She is majoring in Speech, Language, and Hearing Sciences with a minor in Community Leadership. Her background includes internships and volunteer work at various non-profits including the Suicide Crisis Hotline and Safehouse Progressive Alliance for Non-Violence. She is passionate about the prevention of gender-based violence, and she is currently working on a school project aiming to reduce the incidence of sexual assault that occurs on CU Boulder’s campus. Kat is honored to be a part of such an extraordinary organization that empowers people to reclaim their autonomy and make their own choices about their personal

Sarah McArthur, Executive Director and Lead InstructorInterim Executive Director Sarah McArthur

Sarah McArthur is originally from Colorado, but spent the majority of her youth in the Caribbean and the Middle East. Upon returning to the United States, Sarah lived in Louisiana. She has a love for travel and spent two and a half years traveling the United States as a presenter and public speaker for middle school and high school audiences. She and her husband returned to Colorado in 2007.

In 2009, Sarah took her first  Women’s Basics Course at IMPACT. She found the experience so transformative that she trained as a class assistant, lead assistant and eventually assistant trainer. She became a Certified Lead Instructor in 2015. After serving as a program coordinator and director, Sarah became IMPACT’s Interim Executive Director in late 2017.

Sarah has a professional background in administration, sales, customer service, and operations management. She is passionate about empowering adults and children to live powerful and unafraid in the world.

Anderson Minnick, Suited InstructorSuited Instructor Anderson

Anderson Minnick grew up in Michigan and moved to Colorado in search of a new adventure after completing his undergraduate degree. He was raised in a family of activists and volunteers and has always found satisfaction in helping others.

He got involved in IMPACT after attending a friend’s graduation. Anderson was skeptical at first; how could you learn anything real in such a short time? He immediately saw the effectiveness of the techniques and strategies and knew he wanted to help. He believes IMPACT Personal Safety of Colorado is something special and unique. It isn’t just about teaching people how to fight. It’s about giving adults and children the tools to make everyday decisions that positively impact their lives and well-being while ending the cycle of violence.

Dez Shallenberg, Suited InstructorSuited Instructor Dez

Dez graduated from IMPACT Bay Area Women’s Basics in 2004. Because the ability to move through the world with less fear was a life-changing experience for her, she wanted to become more involved with this important work. Once the stars aligned, she became an assistant at the Colorado chapter of IMPACT. “One day I was asked if I knew any men who might be interested in becoming suited instructors,” she said. “Initially, I thought about my husband, but then I thought, ‘Why not me?’  So here I am.”

Serving as a Suited Instructor “Is a huge physical and mental challenge,” said Dez. “It’s also a great privilege to be trusted with this work. I love watching people find their voice and their personal power.”

Jacob Stagner, Suited Instructor and Instructor TrainerSuited Instructor Jake

In Jacob’s younger years, he was not aware of the fear of being harassed or attacked that follows many women in simple daily activities like going to the store, gas station, or park. As a man, he felt no such anxiety and therefore experienced no limitations in where he could go, even late at night. He simply went about his day, free and at ease. When he found out later, through the women in his life, how restrained they feel by their fear, he was upset. This new knowledge drove him to seek out ways to end this imbalance and help women claim the same feelings of ease and freedom he has experienced as a men. Impact has given him a forum to do that.

Jacob cherishes the opportunity to teach adults and children about safety, awareness and effective self-defense. IMPACT’s skills allow everyone to lead their lives with a greater sense of empowerment and freedom from fear. Jacob has a diverse background in sales and is thrilled to be sharing a “product” he believes in so deeply. In his spare time, he is an avid runner and adventurer.