"It was intense. It was just an intense moment," she said.
The woman fired a shot to scare off the robber. She didn't hesitate to help when she saw a man being badly beaten and robbed.
It was a dangerous situation but she says she had to help.
"He was just punching on the guy and I had to stop him," she said. "I just had to save the guys' life. That's all I did was try to save someone's life."
The 21-year-old suspect ran off but was later captured by police.
The victim was treated for head wounds, a broken nose and deep cuts to his face.