Reyes Cobix Chagala was 29 when he was last seen on July 9, 2008, in Lukeville, Arizona, a small border community in Pima County. Family reports say he may also have used the name Elias Cobix Chagala. He is described as a Hispanic male between 5 feet 3 inches and 5 feet 5 inches tall, weighing 117 to 137 pounds, with a 10-centimeter scar on his head.

Family members later received unverified information that Reyes may have died from a snake bite while crossing the Altar region of Sonora, and that his body was taken to Tucson, Arizona; those reports were never confirmed. An official report was filed with the Pima County Office of the Medical Examiner on July 10, 2009, and the case is recorded in NamUs as MP16142. Many key details remain unresolved.

If anyone knew Reyes, Elias, where he traveled, or has information about his possible crossing through Sonora, please come forward.