Shortly after receiving his black belt in Kenpo , he went into the army and served in Vietnam from 1966 - 1967 .
During the 1960 's , Guro Dan Inosanto introduced Hartsell to the famed Edmond Parker , Sr. , and began his studies in Kenpo Karate .
Shortly after receiving Hartsell 's black belt in Kenpo , Hartsell went into the army and served in Vietnam from 1966 - 1967 .
During the 1960 's , Guro Dan Inosanto introduced Hartsell to the famed Edmond Parker , Sr. , and began his studies in Kenpo Karate .