Gerebel Guzman Mancillas, 40, was last seen September 1, 2009, while attempting to cross from Rio Bravo, Tamaulipas, into Texas. He was traveling alone and disappeared under unclear circumstances; he has not been heard from since late September 2009.

Described as Hispanic with gray or partially gray hair, Mancillas was about 5 feet 8 inches tall and weighed around 220 pounds when he vanished. The Texas Department of Public Safety is handling the case and continues to seek information that could help locate him or explain what happened.

If anyone has information about where Gerebel Mancillas was seen after September 2009 or recall details from that crossing, please share what you know.