Authorities say an Embry-Riddle Aeronautical University student faces charges after threatening to kill a professor.
Daytona Beach Police Deputy Chief Craig Capri says 33-year-old Konstantinos Kostakis was arrested Thursday. He's charged with making a written threat to kill or injure. Capri says the student confessed.
The Daytona Beach News-Journal reports police went to the College of Aviation building on April 1 after assistant professor of commercial space operations Diane Howard found the typed letter. It claimed two heavily-armed students would shoot her.
Police say the letter also called for her to resign and cited shootings at Virginia Tech and Sandy Hook Elementary School.
Kostakis confessed in a written statement, saying he wanted his bad grade changed.
He was booked into jail. It's not known whether he has an attorney.
