Vickie Rock, 50, was visiting the home of her boyfriend at the Grand Oaks Apartments in Riverview, FL when she heard screaming as well as glass breaking.
Rock ran to investigate the source of the commotion. She found a man, identified by media reports as Daniel S. Robertson, beating his girlfriend with a metal object.
Rock, who was carrying a concealed .45 caliber handgun, ordered the man to stop, which he did, but then he turned his attention to Rock.
Rock, then fearing for her safety once the man began attacking her, drew her weapon and opened fire, striking the suspect at least once.
When police arrived they found the suspect, Robertson, dead in the parking lot.
No charges are pending against Rock, who based on media accounts, acted in self defense.
Eyewitness account also confirm the self defense story.
Both women suffered minor injuries during the altercation.