Jefferson County Sheriff's Office spokesperson Rod Carroll says an active search is underway for missing Alzheimer's patient 57-year-old John Guillory of China. Carroll says Guillory was last seen around midnight Sunday. Crews with both Jefferson and Hardin Counties are using four wheelers and K-9 units. The Beaumont Police Department is also assisting. Carroll says the search area includes the wooded area near Sandrinham and canals off Meeker. 12 News HD has a crew at the search area and we will bring you the latest developments as they become available.