Enrique Heriberto Marquez Nataren was 17 when he left to join his mother in New York and was last heard from on August 1, 2011. He called from Altar, Sonora, saying he and a group planned to cross at the Sonoyta/Lukeville port of entry the next day. Enrique is Hispanic with black hair and black eyes and was last seen wearing a black XL t-shirt, black jeans, and size 9 black Reebok shoes.

Family contact ended after that call. On August 8, 2011 the group’s guide, or coyote, phoned to report that on August 5 Enrique had become gravely ill — described as having a heart attack, vomiting and too sick to continue — and that he had been left behind near Cerro de Elefante. The coyote did not state definitively that Enrique had died. The Pima County Medical Examiner’s Office has the case, but an absence of precise location information has hindered recovery or identification efforts.

Does anyone have information about Enrique’s crossing route near Cerro de Elefante or contacts who were in the group that crossed on those dates?