Martin Bautista Serrano, 39, was last seen June 20, 2011 near the US–Mexico border around Sasabe, Arizona, a remote crossing point in the Sonoran Desert. He is Hispanic, with black hair and brown eyes, listed between 5 feet 4 inches and 5 feet 10 inches and about 160 to 165 pounds. His belongings at disappearance included a white cotton t-shirt, dark blue jeans, a matching jean jacket, white leather tennis shoes marked with the letter S, a black nylon backpack, and a black leather belt with a chrome buckle.

Distinctive features noted were piercings in both ears, a small scar on the left eyebrow, a large scar on the left hand, and six small scars near the right ear. The Pima County Medical Examiner opened a case file the day after he was last seen under case number FSC MPR 1881; the office handles many cases involving undocumented border crossers who go missing in this harsh terrain.

If anyone saw Martin around Sasabe in June 2011 or has information about his journey, please share what is known with investigators.