Saint John police say they have concluded the investigation into the death of Genevieve Cormier and foul play has been ruled out.
The 19-year-old Saint John High School student went missing in September.
Her body was discovered on a beach 35 days later.
In an email to CBC News on Wednesday morning, Sgt. Jay Henderson said a coroner's report and a pathologist examination have been completed. Both reports rule out foul play, he said.
The details of the reports will not be made public at the request of Cormier's family, said Henderson.
The disappearance of the popular teen drew national attention.
Cormier was last seen alive on Sept. 29 in the parking lot at Reversing Falls on the city's west side.
Volunteers canvassed neighbourhoods and tramped through wooded areas searching for clues.
The Coast Guard swept surrounding shorelines and a group of unions put up a $10,000 reward for Cormier's safe return.
Her body was discovered by a woman walking her dog in the Red Head area, on the city's east side.
Hundreds of mourners attended Cormier's funeral.