Although Duane 'Dog' Chapman refers to Justin as his nephew, the two are in no way related. His mother, Moon is very good friends with Dog and thus Dog refers to Justin as his "nephew".
Was involved in an almost-fatal car accident in Big Island, Hawaii in 2007. As a result of the accident, he lost his right leg below the knee.
Has three children, a son, Cameron and two daughters, Kanoelani and Naomi.
Graduated from Pahoa High School in Pahoa, Hawaii in 2001. He later went on to attend Bryant & Stratton College in Albany, New York where he studied business.
Took up modeling in his early twenties but never pursued it, instead focusing his attention on his musical interests instead.