Marcus Daniel was a 25-year-old University of Missouri–Columbia student when he vanished from Columbia, Missouri. He was last seen on December 6, 2002. At the time he was described as a Black male, 5 feet 10 inches, 180 pounds, with black hair, brown eyes and a distinctive birthmark above his left eye. Family reports say he had a neatly trimmed full beard and mustache when he left.

Reports indicate Marcus left a goodbye note for his father and, a few days after he was last seen, mailed a letter to his mother postmarked from Chicago, Illinois; that letter did not say where he planned to go. For reasons not publicly detailed, he was not reported missing until October 6, 2005. The Columbia Police Department is listed as the investigating agency. Very little else has been made public, and his whereabouts after December 6, 2002 remain unknown.

If anyone knew Marcus, saw him in December 2002, or has information about his movements after he left Columbia, please come forward.