He was born in the city of Linares, capital of the homonymous province in Chile. He is the son of the Major Warrant Officer of the Carabineros de Chile, Mario Rozas Ortiz. Two of his brothers also belong to the Carabineros, and he is married to Carola Valeska Ahengo Triviño, also a member of the uniformed police, who holds the rank of colonel.[1]