The official site for San Kil Tang Soo Do

Kwan Jang Nim (KJN) David L. Sgro

- Founder San Kil Tang Soo Do
- Co-Founder United States Goodwill Tang Soo Do Association
- Southeast US Rep, World Dang Soo Do Union
- 7th Dan Tang Soo Do 
- 5th Dan Jujitsu

KJN Sgro began studying Go Ju Ryu in 1974 with Hanshi Vergalitto.  In 1978 he began studying Tae Kwon Do Moo Duk Kwan with Mr. Michael Enright; and Tang Soo Do Moo Duk Kwan with KJN Charles Ferraro, who had a great influence upon his martial arts and Instructor Roger PetroRoy.  He also considered KJN HC Hwang one of his teachers.  Currently he is a student of KJN Song Ki Kim, Grandmaster of the World Dang Soo Do Union (#312).  "He is very humble person, and an accomplished teacher, who lives Tang Soo Do, I've been blessed with exceptional instructors and KJN Kim is amongst them", quotes KJN Sgro, who currently is a Christian Missionary serving and living with his family in Guatemala.   Tang Soo!