Nathan Isaac Patrycia was 18 when he was last seen in Georgetown, Delaware, on March 20, 2003. NamUs lists his case as MP8125 and still publishes it as a missing-person file.

His mother reported him missing five weeks later and said he had been depressed and had been communicating online with a girl from California, prompting investigators to note the possibility he may have traveled there. There has been no confirmed public sign of Nathan since March 20, 2003, and few details about his movements after he left home have been released.

Anyone who knew Nathan, saw him in or around Georgetown on or after March 20, 2003, or has information about possible travel to California is asked to contact Delaware State Police Troop 4.