"She headbutted me," the officer says on the video as his colleagues rush in to handcuff the woman.
Miami-Dade Police Director Alfredo Ramirez said Thursday that he had decided to fire the officer after reviewing the results of an investigation into his conduct. Ramirez said he has asked Miami-Dade State Attorney Katherine Fernandez Rundle to investigate the use of force.
"The MDPD holds itself accountable for its actions, and this is just another example of our commitment to do just that," Ramirez said.
The Miami Herald reported that the woman was loudly complaining about a missed or delayed flight and a ticket agent called police. The officer arrived and began talking to the woman but the confrontation escalated when she began shouting at him, the newspaper report said.
Steadman Stahl, president of the Miami-Dade Police Benevolent Association, was quoted by the newspaper as saying the officer hit the woman with an "open-hand slap", which is also called called a "diversionary strike".
"Clearly she was the aggressor," Stahl said. "She was being asked to leave. She's being belligerent and she pushes her face right into his face."