Decades of experience.
A wealth of knowledge.

DWMAA instructors have vast experience in the study and practice of karate. They are skilled in the teaching of the technical aspects of karate, instilling discipline, self-confidence and leadership, and using positive reinforcement with attention to varying learning styles and individual progress.




David Turkoski | Erik Croft | Marcia Schnepf | Amelia Davis | Bethany Estrabillo | Graham Dennie | James Hill | Aykan Mesek | Justin Mackenzie | Hannah Schnepf | Victoria Rank | David Lauzon | Trevor Guillemette | Greg Hartmann | Tyler Cripps | Scott Foster | Brandon Hawkins | Terence Davis | Gerry Fairchild | Camille Brabant

David Turkoski, Head Instructor of Don Warrener Martial Arts AcademySensei David Turkoski, 6th Dan, Head Instructor

Sensei David Turkoski is a 6th degree Black Belt in Goju Ryu Karate. He has been the owner and head instructor of Don Warrener's Martial Arts Academy in Brantford for the last 26 years. Don Warrener's Martial Arts Academy is one of Canada's oldest martial arts schools. Sensei Turkoski is a senior student of Sensei Don Warrener. Sensei Turkoski was recently promoted to the honorable rank of Renshi.
Over the years, Sensei Turkoski has trained in a variety of martial arts including Kobudo, Ju Jitsu, Grappling and Tai Chi, to name a few. He has competed both nationally and internationally in tournaments and has had the opportunity to train with various legendary martial artists from around the world. Sensei Turkoski has trained with Sensei Richard Kim, Sensei Peter Urban, Sensei Chuck Merriman, Sensei Fumio Demura, Professor Wally Jay, The Gracie family, Dan Severn, Joe Lewis, Bill Wallace and Master Akeshi Sueyoshi from Japan. He was also fortunate enough to train in France and Brazil, as well as Japan and Okinawa with Taira Sensei and Kinjo Sensei. He continues to travel and train internationally.

In 2010, he organized the World Karate Championship Tournament in Brantford, Ontario, which featured top competitors from around the globe. Currently, he is the President of the Canadian Karate Organizationand is one of the coaches on TEAM CANADA. Sensei Turkoski continually is involved with TEAM CANADA and their international competitions. In 2016, Canada will be hosting the World Karate Championships which will be held in Hamilton and Sensei Turkoski will be the host.
 Sensei Turkoski has taught and graded over 150 black belts so far in his career, some of which are international champions.   Martial arts is a way of life for David Turkoski and all of his family. His wife, Geraldine, is a Black Belt and his sons, Adam and Sean, also train at the Academy. Sensei Turkoski takes pride in offering traditional martial arts training while making it a positive learning environment for all of his students. As an extension of martial arts instruction, he also regularly offers seminars in children's street-proofing and anti-bullying. He has conducted these seminars on-site and at various community venues, as well as at many schools in the Grand Erie District School Board.

Sensei Turkoski continues to take an active role at his Martial Arts Academy. He is on the floor every day, personally teaching children and adults of all levels. His commitment to the martial arts is evident, as is his interest and concern for the advancement and personal development of each and every one of his students.


Erik CroftSensei Erik Croft, 4th Dan
Erik Croft  started training at  Don Warrener's when he was four years old. He has been  training for over 23 years. Erik is currently a fourth degree black belt and in December 2015 was promoted to the rank of Sensei.  Sempai Croft feels that by doing karate for as long as he has, keeps him healthy and has also taught him values such as self-discipline, humility, and respect. He feels that his involvement in the Martial Arts have helped  him throughout high school and college and  will to continue to help him no doubt  in my future career in law enforcement.


Amelia Davis, Instructor at Don Warrener's Martial Arts AcademySempai Marcia Schnepf, 3rd Dan

Marcia Schnepf began training at Don Warrener's in 2006 and instantly fell in love with the art.  It was an amazing stress buster, great way to get in shape and very empowering .   She trains regularly and has achieved the level of Sandan and was recently recognized with the title of Sempai. Marcia enjoys competing and has traveled for international competitions for several years now.    She has a history of teaching children of all ages and brings that skill into teaching at the dojo.  She also has initiated a new program for preschoolers who are eager to get onto the dojo floor, introducing body awareness skills, karate skills as well as focus , balance and listening skills.  Sempai Schnepf enjoys running karate camps as well as birthday parties.   Studying the martial arts will continue to be a lifelong love and important part of her life. One of her favourite quotes is from O’Sensei Don Warrener, "The way is in the training".

Amelia Davis, Instructor at Don Warrener's Martial Arts AcademyMrs. Amelia Davis, 3rd Dan
I started taking karate in 2005 and in total I've spent over 18 years of my life here between watching my kids take karate and training myself. In my time at the Dojo, I have had the opportunity to watch very small children grow with karate and work their way into mature, successful adult black belts. Starting this April (2011), I began to instruct – teaching for me is the next step in my learning. I enjoy all aspects of karate but sparring is my specialty. Beware of my tiny fists of fury.


Bethany CampbellMrs. Bethany Estrabillo, 2nd Dan

Bethany Estrabillo was introduced to Goju-Ryu karate at the age of two, watching on the sidelines as her older brother competed and counting down the days until she was old enough to join. Bethany joined karate at the age of five and began competing almost immediately thereafter.
Some of Bethany's most exciting achievements include winning first place in kata at the CANUSA games, the White Sand Invitational (Canadians), CFB Borden Canada Goju Karate Championships, and most recently, first place in weapons at the WKO World Karate championship.

After years of training under Sensei Layton Morrison, Sensei Mike McGlashon, and Sensei Dave Turkoski, Bethany has achieved her second degree black belt. Bethany became an instructor at Don Warrener's Martial Arts in 2007 after relocating to Brantford for University.

Bethany's schooling assists her in ensuring the very best instruction for students at Don Warrener's Martial Arts, which includes a Bachelor's of Education degree and an Advanced Diploma in Child and Youth Work. One of Bethany's favourite transformations in the sport is the dramatic increase in female participants; as a child, Bethany was frequently the only female competitor in her division, and always the smallest.

Karate has played a crucial role in the development of who Bethany is as a person today, instilling in her values such as compassion, gratitude and respect.

Bethany is dedicated to the students that she has the privilege to teach and prides herself on their success.

James Hill, Instructor at Don Warrener's Martial Arts AcademyGraham Dennie, 3rd Dan

Mr. Graham Dennie  began his journey in Goju-Ryu karate at the age of eight with the goal of becoming a black belt. Graham was able to achieve this after six years, when he graded for his junior black belt, and has since moved on to attain his second degree black belt. After four years of training, Graham began assisting in the children’s classes as a junior instructor. He has been instructing children’s classes for over nine years and his future goal is to become a Sensei. Graham has been very active in competitions throughout his training. His greatest accomplishment was winning Grand Champion of Southern Ontario when he was sixteen years old. Karate has played an influential role in Graham’s life and he hopes to act as a role model for the students he now teaches.

James Hill, Instructor at Don Warrener's Martial Arts AcademyJames Hill, 1st Dan

James Hill started his martial arts endeavours with Yellow River Tai Ji Quan School of Canada.  He completed the Beginner Level of Tai Chi & Chi Gong with Sixth Duan Master Ling Zhong Xie.  James then began studying karate at Don Warrener Martial Arts Academy in the Summer of 2007. He achieved his first degree black belt in June of 2012. James continues to train in karate and is also now teaching the Japanese version of Tai Chi classes learned from Sensei Turkoski here at Don Warrener's Martial Arts Academy.

Aykan Mesek, Instructor at Don Warrener's Martial Arts AcademyAykan Mesek, 1st Dan

My name is Aykan Mesek and I started my martial arts training at Don Warrener's Martial Arts Academy in 2007. Since then I have participated in several martial arts based tournaments and seminars allowing me to gain more knowledge and experience about the martial arts. My favourite part about training in karate in sparring, but above that I just love the art of karate its self as it helps me reach top physical fitness levels and also educates me in areas like self discipline and respect. I earned my full black belt and since then have been an instructor here at Don Warrener’s, here as an instructor I see the opportunity to take time which each student I teach and help them realize their full potential inside the martial arts, trying to positively encourage them to have an “I can do it” mentality instead of giving up and saying “I can’t do it” when faced with a challenge inside or outside the dojo. For the future I hope to keep training and educating myself in the martial arts for as long as I can.  

Justin Mackenzie, Instructor at Don Warrener's Martial Arts AcademyJustin Mackenzie, 1st Dan

I am currently 18 years old, and have been training at Don Warrener’s  Martial Arts Academy for the past 12 years of my life.  My parents signed me up for my first class at the age of six after noticing my affinity for martial arts films, especially ones including Jackie Chan. Since then I have learned not only how to defend myself, but also how to be positive, confident, dedicated, and respectful. These qualities are what I aim to pass on to all of the students, so that they too may be successful in all of their endeavors. I have now been an instructor for 3 years and have enjoyed my job very much. I only hope that I have had a positive effect on all of the student’s lives just as they have had on mine.

Hannah Schnepf, Instructor at Don Warrener's Martial Arts AcademyHannah Schnepf, 1st Dan

Hannah started training here when she was 9 years old along with her sister, brother and her mom.  She competes regularly in tournaments and seminars and has been an instructor at DWMAA for over a year.  Training at the dojo has influenced all areas of her life in a positive way, and instructing has been a great experience.  Hannah is an excellent addition to our teaching staff and has a great way with kids.  We look forward to her being part of our team for a long time.

Victoria Rank, Instructor at Don Warrener's Martial Arts AcademyVictoria Rank, 1st Dan

My name is Victoria Rank and I began my martial arts training at Don Warrener’s Martial Arts Academy in 2003. For 12 years I have trained under the expertise of Sensei David Turkoski and Sensei Tracy Warrener. In October 2010, I competed in the WKO (World Karate Organization) Tournament. I was awarded third place in sparring. This past June I achieved my first degree black belt, after receiving my black belt I began assisting in the children’s classes. It’s a joy to see the children accomplish new techniques as well as achieving new belts. I am also a dancer. For 8 years, I have trained in Acro, Jazz, Hip Hop, Ballet and Musical Theatre. Training in the martial arts has helped to develop the strength and focus I need in dance. Karate has played an important role in who I am today, it has taught me values such as compassion, gratitude, dedication and respect. I am dedicated to the martial arts and am looking forward to continuing this for many years to come.

David LauzonSensei David Lauzon, 4th Dan
I've been studying the martial arts for almost 20 years. I started training in Aiki Jiujitsu in Sarnia Ontario in 1992 under Master James Carrothers. I moved to Brantford in 1998 and immediately started training in Go Ju Ryu karate under Sensei David Turkoski. My martial arts training continues to be a lifelong pursuit. I currently hold the rank of 4th degree in Go Ju Ryu karate. I have attended many seminars over the years and have had the privilege of training with Sensei Don Warrener, Master Don Jacobs, Sensei Copeland, Sensei Chuck Merriman, Sensei Emil Farkas, and many others. I've taught women's self defense seminars at Don Warrener's Martial Arts Academy, with the proceeds from the events going to the local women's shelter. It's my goal to deliver one annually at the club as well as monthly at the shelter. I look forward to teaching at the club for a very long time.


Trevor GuillemetteSempai Trevor Guillemette, 3rd Dan
I started training at Don Warrener's Martial Arts Academy in early 1996 and received my black belt in November 2002. I have learned so much these past 15 years and I don't plan on stopping because even after you receive your black; you never stop learning. Plus, once I earned my black belt; all physical challenges that have/will come my way are now easier because I have already pushed myself and I know I can accomplish anything. I also enjoy passing on the knowledge of our arts' history and techniques to both our children and adult students.


Tyler CrippsGreg Hartmann, 2nd Dan
Greg Hartmann has been training here at our school for over 14 years, and is a second degree black belt. Greg is both an Ontario and National Champion with many tournament successes under his belt. He currently is our sparring coach. His expertise and knowledge make him a positive addition to our teaching staff.



Tyler CrippsTyler Cripps, Junior Black

My Name is Tyler Cripps and I have been participating in the martial arts since I was 3 years old, back at the old dojo, I am now 15. When I was 12 I earned my Junior Black belt and when I turned 14 I began to teach frequently in the kid’s classes, assist with birthday parties and grading. Karate has always been important to me and is always there when I need it. My favourite aspect of karate would be kata, as I love seeing the kids and myself slowly but surely improve as time goes on, it is incredible. Seeing the more competitive side of karate at the tournaments has always interested me to. The dojo has also always been a friendly and kind place, and I have always felt welcome, it is a second family to me, and I am honoured to be one of its teaching staff.

Scott FosterScott Foster, Junior Black

I started  Karate lessons in 2003 when I was just 4 years old. Before I started I was shy and a little introverted but Karate really brought me out of my shell.  It  has not just taught me self defence but also self confidence and respect. Being part of the Canadian tournament team has brought me  to new places such as Brazil and Arizona. Karate has not just guided me but has helped mould me into who I want to be.



Gerry FairchildSensei Gerry Fairchild, 4th Dan
Sensei Gerry Fairchild has been training in the martial arts for over 16 years, and is a 4th degree black belt. With many competition wins and dedication to teaching and training in the martial arts, he is an excellent asset to our teaching staff.




Camille BrabantSensei Camille Brabant, 4th Dan
Sensei Brabant has been training in the martial arts for over 18 years. He is a 4th degree black belt here at our school. He received his black belt from Sensei David Turkoski fourteen years ago and for the last 13 years has been an instructor here. Camille started his karate training because his son was involved and thought it would be a great thing to do together. His son, CJ, is also a black belt here at our school. Throughout the last 18 years, Camille has had the opportunity to train with Sensei Don Warrener, Sensei Chuck Merriman, Master Don Jacobs and many more. He continues to train regularly in classes with Sensei Turkoski.


Brandon Hawkins, Instructor at Don Warrener's Martial Arts AcademyMr. Brandon Hawkins, 1st Dan
I started my karate training in 2005 at the age of 12 years old. The reason I started was because I watched my little brother while he practiced and decided I would like to train in the martial arts as well. I've been training in karate for over 6 years. After 5 years of training, I achieved my first degree black belt. For the past three months I have been teaching and assisting in the children's classes. When I'm asked what are my goals for teaching, I simply reply that I plan to help students realize their full potential through their martial arts training. I would also encourage all the students to do their best and train their hardest in every class, as it will improve every area of their life. By encouraging them, I hope to help develop the next generation of strong martial arts students.


Amelia Davis, Instructor at Don Warrener's Martial Arts AcademyMr. Terence Davis, 1st Dan
Eight years ago, I participated in my first karate class and threw my first kick – from that moment on I knew this was what I wanted to do. I have participated in several tournaments, seminars and have also volunteered for 2 years at the dojo. I have earned my full black belt and I am now an instructor at Don Warreners Martial Arts Academy. My favourite part of karate is kata. In the future I hope to earn my next degree and possible become a Sempei.


Amelia Davis, Instructor at Don Warrener's Martial Arts AcademyMr. Adam Turkoski, 1st Dan
Adam is 19 years old and has been  training  at Don Warrener's Martial Arts Academy for 16 years. He is a 1 st Degree Black Belt and is the eldest son of Sensei David Turkoski. Adam enjoys working with the younger kids and training them to be the best they can be.  One of Mr. Turkoski’s favourite parts of karate is sparring. He has won several tournaments in sparring, as well as kata and weapons. In 2010, he  competed in the World Karate Championships where he received 1st in sparring and 3rd in kata. Karate for Adam is more than just a daily workout, it's a lifestyle.  He feels the lessons he has learned he can use inside and outside of the dojo. Since Adam has spent the majority of his life here at the dojo, it is something that he plans to continue doing and  will likely make this a life long commitment.


Stillwell Testimonial"My kids started karate at Don Warrener's Martial Art in, Brantford 6 months ago. Since starting, they have much more focus, concentration, self confidence and handle discipline better. Their school work has also improved greatly as well. We are very happy with the results."
~ Mairi Saffarese


Adult grading

Instructors posing

Kids class

Kids' Self Defense

Adults sparring





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