Nicasio was last seen in Montclair, California on March 19, 1984. He got into a fight that evening and wanted to go into an alley, and his brother warned him not to go there alone. Nicasio got angry and said he was leaving. He has never been heard from again. Nicasio wasn't reported missing until 1993, nearly ten years after his disappearance. In 1997, friends reported having seen him in Montclair and in the Los Angeles, California area, but his current whereabouts are unknown and his case remains unsolved. Nicasio's front teeth are crooked.