Edgar Agustin Avechuco Calderon, known as Chapo, was last seen July 17, 2010, near Lukeville on the U.S.-Mexico border. He was 30, Hispanic, 4 feet 10 inches to 5 feet tall, 100 to 110 pounds, with brown hair and dark brown eyes. He had tattoos reading Agustin and Kavin on his arms and was wearing a Raiders hat, a brown/white/black striped short-sleeved shirt over a white sleeveless shirt, black jeans and white and sky blue tennis shoes, possibly Nike.

Edgar set out from Sonoyta, Mexico, with a group crossing the desert. According to those who traveled with him, he began to struggle and three days later, on July 20, the group reported he could no longer continue, had run out of water and was exhausted but not injured, and was left behind. The Pima County Medical Examiner’s Office is the primary agency handling the case. The case was added to NamUs on July 30, 2012, and remains open.

No confirmed sightings or further information are reported; does anyone who knew Edgar or was in that area in July 2010 have information that could help?