Dwanya Hickerson butchered Dee Whigham after 'losing it' at a hotel room in Mississippi, US.
An autopsy showed many of the stab wounds were to Dee's face. Her throat was had also been slashed three times, The Sun Herald reports
Hickerson was arrested on Keesler Air Force Base two days after killing the nurse at a Best Western Hotel.
A court heard the pair had met up to have sex after talking online for a couple of months.
Hickerson admitted murdering Dee. He said he flew into a rage after the pair had sex and then she revealed she had been born a man.
"I lost. I lost it," he told the court.