DURHAM, N.C. (WNCN) – A man who is believed to be suffering a cognitive impairment went missing from a Durham home and has since been found late Wednesday night. An alert was issued by the NC Center for Missing Persons at 9:31 p.m. Wednesday for 32-year-old Darien Smith. Smith was described as a Black male standing six feet, six inches tall with brown eyes and short black hair. He weighs approximately 300 pounds and has a cut/scratch on his nose, the alert also specified.