Santiago Castaneda Campuzano, 35, was last seen June 3, 2011, near Lukeville in Pima County, Arizona. He is described as a Hispanic male, about five feet six inches tall, 150 pounds, with black hair, brown eyes and a mustache. Distinguishing marks include a scar on his right shin, scars on his left hand and right calf, and missing skin on one thumb.

At the time he disappeared he was believed to be crossing the U.S.-Mexico border. He reportedly carried a black laptop backpack and a black briefcase containing photographs of his wife and sons. Clothing noted that day included a black short-sleeved lycra shirt, Levi’s jeans, a blue patterned sweatshirt, a black belt, green lycra boxers and black Nike tennis shoes. The Pima County Medical Examiner’s Office is listed as the primary agency handling the case.

Very little is publicly known about what happened after he was last seen.