Who is Uncle Julio from Crazy Weekend: A Novel and what is their importance?

Uncle Julio is Hector's uncle who lives in Fresno, California. He is a photographer, a career he learned in the air force. He does not have much money; he is lower middle class. He rents a small apartment above a garage. He lives paycheck to paycheck as a freelance photographer. Julio is a caring uncle. He takes care of the boys when they visit. He feeds them and provides shelter to the best of his ability. He cares very much about his job as well. He takes his photography very seriously and has ambitions to work for The Fresno Bee newspaper. Julio is clever enough to call the newspaper first (before the police) to make sure they pay for his photos of the robbery. He is also clever enough to take photos of anything that looks suspicious, just in case he can get money for them.