Amanda Strous, who was a counselor at Central Piedmont Community College and a bride-to-be, suffered injuries including burns and blunt force trauma.
The report shows that Strous was only wearing bathing suit bottoms and that her mouth was reportedly covered with duct tape that emergency crews had to remove, WSOC reports.
Twenty-eight-year-old Matthew Thomas Benner is charged with first-degree arson and murder in her death. Authorities believe Benner, who lived in the same apartment complex as Strous, had been stalking her.
Strous was to be married in September.
A rape kit was also performed and turned over to detectives.
The Associated Press contributed to this report.