Daniel Barrios Ramos was 27 when he was last seen on July 1, 1986, near McAllen, Texas. He was attempting to cross the Rio Grande but never made it to the other side and has not been located since. At the time he was described as having brown hair, a thin mustache, and a long scar on one thigh; his height was reported between 5 feet 5 inches and 5 feet 10 inches and his weight between 160 and 190 pounds.

Search efforts have continued over the years but have produced little progress. DNA samples were submitted for testing, though no results have been reported. The case remains open and unsolved. If anyone knew Daniel or has information about his disappearance, please contact the authorities handling the case.