According to witnesses who spoke to police, Ricardo Marrero, 44, shot 32-year-old Kelly Abrams and turned the gun on himself, police said.
Marrero's name had been withheld until police were able to contact his family.
Police called to 2731 S.W. 2nd Lane at 4:10 p.m. Saturday found the bodies of Abrams and Marrero, both with gunshot wounds.
A preliminary investigation conducted by officers found the two were living together at the residence on S.W. 2nd Lane and that the shootings followed a domestic dispute.
Witnesses told police Abrams was attempting to end the relationship and, while the two argued in a back bedroom, Marrero shot Abrams and then himself.
After hearing gunshots, the witnesses fled the residence and called 911. Police aren't releasing the names of the witnesses at this point in the investigation.
Captain Lisa Barnes, south district commander for CCPD, said Monday the investigation is on-going.