Michael Ward, 23, died Wednesday night after his girlfriend picked up a gun, pointed it at him, and fired, according to St. Petersburg Police. She thought the firearm was unloaded.
It happened at the couple's home at 1945 2nd Avenue North.
Ward was shot in the chest and taken to Bayfront Hospital, where he died.
Mandy Avis, 20, was arrested and charged with manslaughter.