HILLSBOROUGH COUNTY, FL. – The Hillsborough County Sheriff’s Office is continuing to search for a missing and endangered man in Plant City. Christopher McCullogh, 88, was last seen at approximately 1:00 a.m. on Friday, July 23, 2021. McCullogh has dementia, and Atrial Fibrillation, and can only hear with a hearing aid. He is overdue for his medication.