RCMP spokesman Sgt Rob Lockhart advises the RCMP has charged Craig John George Flett (20) with Second Degree Murder regarding the death of Annette Freda Beardy-Spence.
An RCMP media release indicates the autopsy found the cause of death was due to a gunshot wound.
Flett appeared in court in Thompson on October 31, 2013.
The RCMP spokesman could not confirm whether Flett and Beardy-Spence were involved in a domestic relationship.
Tatasweyak Cree Nation (Split Lake) is located approximately 120 kilometres northeast of Thompson, Manitoba.
This is the seventeenth (17) Homicide investigated by the RCMP this year.
In 2012, the RCMP investigated a total of nineteen (19) killings.