Narciso Ezequiel Lujan Tobon-Diaz was last seen December 2, 2011, near the U.S.–Mexico border by Sasabe in Pima County, Arizona. He was 42 at the time and described as a Hispanic male, 5 feet 7 inches, 160–165 pounds, with brown hair, brown eyes and a mustache. The Pima County Office of the Medical Examiner opened a report on December 13, 2011, under case number FSC MPR 1827.

When last seen he wore a navy blue large shirt, black denim pants (34 waist, 30 inseam), black socks and size 9 black shoes. He was carrying a backpack, an amulet and a list of telephone numbers.

Anyone who knew Narciso, saw him in the Sasabe area on or after December 2, 2011, or has information about his backpack or the telephone list is asked to come forward.