Efren Soto Soto was 46 when he was last seen on or about October 10, 2009, in the Lukeville area on the Arizona–Mexico border in Pima County. Reports say he was observed crossing the U.S./Mexico border, possibly near Nogales, Arizona, and there have been no confirmed sightings or communications since that day.

Descriptions list him between 5 feet 7 inches and 5 feet 9 inches, 125 to 145 pounds, with brown hair (possibly graying) and brown eyes. He was reportedly wearing a gray shirt with dots, a gray plaid shirt over a white sleeveless shirt, dark gray jeans, a black jacket, a camouflage hat, white socks and black shoes size 8.5. Distinctive marks include an oval scar on his left leg and a mole on his back. The Pima County Medical Examiner’s Office holds his file.

Few details are known about his movements after the crossing; the circumstances of his disappearance remain unresolved. If anyone knew Efren, saw him around October 2009, or has information about his whereabouts, please share what you know.