Sheriff: Tampa Citibank gunman targeted company over $2,500 debt after threatening attorney

A gunman who killed a woman before being fatally shot by a security guard at Citibank's sprawling office complex in Tampa targeted the campus because he was angry over a $2,500 debt collection, a sheriff said Thursday.About three hours before Wednesday's shooting, Jacob Pearson called an attorney affiliated with Citibank and threatened violence, Hillsborough County Sheriff Chad Chronister told a news conference.On the phone, the 35-year-old Pearson demanded that the lawyer cancel a court hearing over Pearson's unpaid credit card debt "unless you want me to go over there with my AR-15, my bulletproof vest and my insanity," Chronister said.Pearson's wife and mother did not immediately respond to phone calls and text messages requesting comment.The attack unfolded as many of the 3,200 employees at Citibank's campus in suburban Tampa were eating lunch.Pearson drove from his home in Orlando to Tampa, about 90 miles (144 kilometers) away, crashed his car through a fence at the campus and plo