David Colligan, 83, was last seen on December 24, 2013, in St. Augustine, Florida. He is described as a white male, 5 feet 7 inches tall, about 110 pounds, with gray or partially gray hair.

Details about what happened that day are sparse and the circumstances of his disappearance remain unclear. Despite efforts by law enforcement and the community, Colligan has not been located and the case remains unresolved.

Does anyone who knew David or was in St. Augustine around December 24, 2013 have information that could help investigators?