On July 31, 2015, a rancher discovered the naked, decomposing body of a man, floating on the bank of the Santa Cruz River, in Rio Rico, Arizona. He is believed to have been in the water for multiple weeks before being found. With no idea who he was, they took his fingerprints, and were matched to one individual. He had been arrested by USBP after trying to cross the border (presumably), and had given the name "Joel Rallas-Ramos, and listed his birth year as 1946. Upon trying to contact his family, the authorities discovered he had also been arrested in 1987. He had also given a birth year of 1946, but he gave a different name, "Sirilio Rayas". Both names have determined to be aliases, and 4 years on, his true identity remains unknown.