A suspect is dead after an active threat prompted a massive law enforcement response Wednesday at a Citibank business campus in Brandon, Florida

A suspect is dead after an active threat prompted a massive law enforcement response Wednesday at a Citibank business campus in Brandon, Florida, outside Tampa, authorities said. The Hillsborough County Sheriff's Office deployed deputies and SWAT teams to the sprawling corporate complex, where officers began clearing buildings and evacuating employees. The sheriff's office confirmed the response in a social media post, saying deputies were investigating an active threat and working to secure the buildings.