According to the report, Zoe Welsh died from blunt force trauma to the head after a violent attack on January 3. The report states the assault caused fractures to her skull and bleeding in her brain.
Investigators say Welsh also suffered injuries to her chest, arms and legs.
Raleigh police have charged Ryan Camacho with murder in connection with the case. Authorities say Camacho has a lengthy criminal history in Wake and Durham counties.
Police previously said Camacho knew specific details about Welsh's death when detectives interviewed him after the crime.
Welsh had a long career as an educator, teaching science for more than 30 years. She taught at Leesville Road High School before later working at Ravenscroft School.