Just after 8:30 Saturday night, officers were called to an apartment on Bullard near Minnewawa for a gunshot victim.
When police arrived they found 44-year-old Kristina Baker shot inside an apartment.
Her boyfriend told authorities that he had been in an argument with Baker when she grabbed a gun and shot herself.
At this point, no one has been arrested but the death is under investigation. An autopsy is scheduled for later this week.