Mario Antonio Rivas was 45 when he was last seen in Los Angeles on August 28, 2016. He is described as Hispanic/Latino, 5 feet 7 inches tall, about 180 pounds, with black hair and brown eyes. No distinctive scars, marks, or tattoos are listed, and the record contains no information about clothing, belongings, or a vehicle at the time he disappeared.

NamUs shows his case was entered in 2025 and lists the Los Angeles Police Department’s Adult Missing Persons Unit as the case owner, with the disappearance recorded in Los Angeles County. Family notes indicate they have not heard from him for approximately 10 to 12 years, leaving many unanswered questions about his last known day and movements.

If anyone has information about Mario’s whereabouts, contacts, or saw him in Los Angeles around late August 2016, please share what is known with the Los Angeles Police Department’s Adult Missing Persons Unit.