Justin was born in 1975 to Matthew and Jessica Beeber in Baltimore, Maryland. He had an older sister named Shannon. Justin and his family moved to Frederick when he was 4, as he attended school at Frederick Elementary. He met a boy named Tommy in kindergarten and they became best friends. Later, he met a girl named Luna in the third grade. The two became enemies, until the middle of the fifth grade, when Luna moved to Kentucky. He never speaks of her any more.