Dennis William Conatser, 72, of Scottsdale, Arizona, passed away December 8, 2024. He was born in Colorado on October 28, 1952. Dennis graduated from Seligman High School and later studied the Art of American Kenpo Karate under the Founding Grand Master, Ed Parker. Dennis (more commonly known as “Mr. C” to his students) was passionate about Kenpo, instructing and mentoring thousands over the years. He is revered as one of the senior leaders in art of Kenpo. He had a passion for teaching, collecting coins, and hobby modeling. He leaves behind his two boys Dennis II and Stephen, his daughter-in-law Soo, and his grandson Samuel. He leaves us all with countless memories and life lessons.