UPDATE: Just after 8 a.m. on Tuesday, Aurora Police tweeted that James Spain has been found safe.
PREVIOUS STORY: A man police say functions at the level of an 8-year-old child is missing from Aurora.
James Spain, 25, was last seen at 9 a.m. near 3600 South Cathay Street.
Spain is developmentally disabled. He's described 5 feet 7 inches tall and weighs 140 pounds. He has brown hair and blue eyes and was last seen wearing a black jacket, jeans and brown shoes.
He left his home on a red 10 speed bicycle carrying a folding shovel. He left a note stating that he would be digging a hole under a tree. Spain has run away in the past and was found in the Commerce City Area.