Rafael Caballero, 64, was last seen in Newport Beach, California, on September 30, 2016. He was wearing a gray shirt, gray hat, and gray pants at the time and is described as 5 feet 10 inches tall, 180 pounds, with black hair, brown eyes and a mole above his right eyebrow. He sometimes used the last name Fernandez and was known by the nickname Mono.

Few details are available about the circumstances of his disappearance, and he has not been heard from since. The Newport Beach Police Department continues to investigate but no significant leads have been reported and the family is seeking information.

If anyone knew Rafael, his habits, the places he frequented in Newport Beach around late September 2016, or has tips that could help locate him, please share what is known with investigators.