The torso found at the Oshawa lakefront on September 11 has been identified as belonging to 18-year-old Rori Hache, according to a news release from the Durham Regional Police Service.
Hache, of Oshawa, was reported missing by her family and was last seen on August 29, 2017.
A DNA test confirmed her identity.
Investigators are urging anyone who had contact with Hache prior to Sept. 11 to call the Durham Police Homicide Unit at 1-888-579-1520.
Tipsters may be eligible for a cash reward of up to $2,000.