UPDATE (Saturday, 8:50 a.m.) - According to the Spanish Fork Police Twitter page, Carl Linker was located late Friday in Monticello.
Linker was found unharmed and without injury, and will be returned to his family.
SPANISH FORK, Utah (ABC 4 News) - Carl Linker, 20, was reported missing at 4:30 p.m. on Friday, and police are asking the public for help in finding him.
Authorities say Linker functions at a 4 to 5-year-old level.
He is 6'1" tall and is 145 pounds. He wears glasses and has brown hair and brown eyes. Police state he may be wearing tan shorts and a gray shirt.
Police are asking anyone with information to contact Spanish Fork police at 801-804-4700.
Stay tuned to ABC 4 News and ABC4.com for more details.