Coaches & Staff

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David S. Moon (Owner / Head Instructor)

David S. Moon is a 6th degree black belt in Moorimdo under Great Grandmaster Yong Moon and currently runs all classes and operations at the academy. He has trained in many other styles including Kung Fu, Kickboxing, Brazilian Jiu Jitsu, Muay Thai, and Taekwondo to name a few. He is the founder of Moorimgoong’s Mixed Martial Arts Program: MooriMMA, which teaches MMA with a systematized curriculum and belt system.

Moon is an LA native as he was born and raised in Los Angeles, California. He attended Wilton Place Elementary, John Burroughs Middle School, Math and Science College Preparatory, and the University of California, Los Angeles with a major in Sociology and a minor in Film. In his childhood days, he competed in golf and was one of the top ranked juniors in the world. His wide array of knowledge and skills at a young age has translated into his exceptional teaching skills to people of all ages and levels.

Daniel H. Lee (Moorimdo Coach)

Daniel H. Lee started his Moorimdo training at 4 years old and is a 6th degree black belt under Great Grandmaster Yong Moon. He has also trained and competed in various other martial art styles up to the collegiate level. He attended the University of California, Berkeley and graduated with a bachelor’s degree in Molecular Biology.

Daniel is currently the Chief Revenue Officer at Hans Biomed USA, a biotechnology company that specializes in biologic, medical devices, and professional cosmeceutical products. He also owns a boutique consulting firm which specializes in helping businesses optimize their operations and grow their overall revenue.

Nacho (MMA Coach)

Nacho was born and raised in Spain, where he started his career as a Sanda fighter and received a Bachelor Degree in Sports Science.

After winning gold for 3 consecutive years at the Spanish Wushu Championship, a Bronze medal at the European Championship and being recognized as a High-Level Athlete by Royal Decree, he moved to LA. From the US he has continued gaining experience as a fighter in muay thai, kickboxing and MMA and training well known fighters from UFC, BELLATOR, glory and Karate combat.

Jay Garber (Grappling Coach)

Jeremiah "Jay" Garber is a black belt in 10th Planet Jiu Jitsu under Eddie Bravo, with a foundational background in wrestling. Jay's journey into martial arts began at a very young age with wrestling. In lowa, wrestling clubs are cheaper and more common for young boys than daycare. This early start paved the way for his later endeavors in Jiu Jitsu, Muay Thai, and mixed martial arts. Along with MRG, Jay serves as an instructor at 10th Planet Headquarters and 10th Planet Torrance, in addition to running a program at The Yard. He is excited to develop the grappling program at Moorimgoong, bringing his extensive experience and passion for grappling to a new audience.

Jay also served six years in the Air Force following high school, which is when he began his Jiu Jitsu training. While in the service he developed or created martial arts programs at his duty stations and trained abroad. Academically, Jay holds an associate degree in Statistics and is nearing the completion of his Bachelor's in Psychology from Azusa Pacific University, with aspirations to pursue an M.D. to become a psychiatrist. Outside of martial arts, Jay enjoys reading, traveling, shooting, camping, and riding horses.

Justin De La Cruz (Kids and Assistant Coach)

Justin De La Cruz started training in Moorimdo at the age of 13, and currently holds a Third Degree Black Belt under Chief Master David S. Moon. He is a brown belt in the MooriMMA Program. He began his martial arts training in Shito-Ryu Karate at the age of six and competed in his school days. Justin currently teaches the kids and teens classes at the academy.

Justin was born and raised in Los Angeles, California. He attended Star Christian School and Child Care Center, St Agnes Catholic School, Los Angeles Senior High School, and studied at California State University, Los Angeles, where he earned a bachelor's degree in communication as a first-generation graduate. When he isn't doing martial arts, he likes to hike, swim, and participate in guitar performances for foundations and concerts.

Brandon Soohoo (Ambassador)

Brandon Soohoo is a lifelong martial artist with a black belt in Tae Kwon Do and a diverse background in Karate, Boxing, Wushu, and Wing Chun. Currently, his favorite style is Muay Thai, of which he is an avid practitioner. An LA native with a passion for performance and creativity, Brandon has been professionally acting since the age of 10, showcasing his martial arts skills in numerous fight scenes and stunt performances in movies like "Tropic Thunder" and "G.I. Joe," as well as TV shows such as "From Dusk till Dawn." SooHoo also amassed a substantial following on social media, growing an audience of over 1.4 million followers online, where he creates comedic content centered around martial arts.

For Brandon, martial arts is more than just a physical practice; it is a lifestyle that unites mind, body, and spirit. He believes it is one of the pillars of his life, teaching him invaluable lessons that have shaped who he is today. When he is not training or on set, Brandon enjoys exploring his passions in cooking, filmmaking, travel, and various visual arts.