The Libyan militia leader behind the 2012 Benghazi terrorist attack that resulted in the death of then-U.S. Ambassador to Libya J. Christopher Stevens has been resentenced to 28 years in prison.

A federal appeals court in Washington, D.C., had ruled that the original sentence of 22 years was too low and ordered a resentencing.

Prosecutors sought at least 60 years to life in prison for Ahmed Abu Khatallah, who was convicted for his role in carrying out the deadly 2012 terrorist attack on the U.S. consulate in Benghazi. U.S. District Judge Christopher Cooper wound up only adding 6 years to his original 22-year sentence. 

Cooper said his conviction did not support a significantly higher prison sentence.