Explained: Citibank office shooter targeted company over a $2,500 debt collection, Florida sheriff says

A gunman killed a woman before being fatally shot by a security guard at Citibank's office complex in Tampa, Florida.

debt collection

Efforts by a creditor or representative to recover money owed, in this case tied to a court hearing

armed security team

A group of Citibank personnel, including an executive, authorized to carry weapons for site protection

campus

A large office complex made up of multiple buildings, in this case Citibank's Tampa facility