Mauricio Martinez Barrera, 30, was last seen between March 14 and March 18, 2010, in the remote Sasabe, Arizona area while attempting to cross the U.S.-Mexico border. His family last had contact with him on March 14, 2010, and he has not been heard from since. The Pima County Medical Examiner’s Office is the investigating agency.

Mauricio is described as a Hispanic male with black hair and dark brown eyes, 5 feet 5 inches to 5 feet 7 inches tall, weighing 199 to 229 pounds. Distinguishing marks include a 3-to-4-centimeter scar on his forehead and a scar on his upper lip. When last seen he wore a plain black dress shirt, a black Adidas jacket, black Levi’s jeans, white socks, and black-and-white Nike tennis shoes. He carried a black backpack, wore a black Levi’s belt and black-framed glasses, and had 1000 pesos and 200 dollars.

The circumstances remain uncertain; the borderland terrain near Sasabe is rugged and the investigation remains open but cold. If anyone knew Mauricio, traveled that area in mid-March 2010, or has information that could help, please share what is known with investigators.