It's a case that has ignited a heated debate over how to deal with San Francisco's homeless.
RELATED: San Francisco condo attack suspect Austin Vincent due in court
Yesterday, that woman was in court to testify against her alleged attacker and emotions ran high.
The prosecutor played the security camera video, showing Paneez Kosarian at the front entrance of her apartment building on Aug. 11. As she tries to enter, she's attacked-- allegedly by Austin Vincent.
Vincent was arrested later that night.
Kosarian was the first prosecution witness Tuesday. She testified that Vincent was standing outside the entrance doors, appearing upset and yelling at the front desk receptionist. She said she spoke with him for about six minutes, trying to understand what he was saying.
Kosarian says he told her not to enter.
"Everybody is a robot," she said. "But not me. I'll save your life. I want to kill the lady inside because she's a robot."
Kosarian testified that when she tried to get inside the building, he became aggressive and physical.
"I was fighting for my life-- crawling into the apartment. He was hurting me, grabbing my arm and pulling my leg."
RELATED: Video shows San Francisco woman trying to get inside apartment building for almost 3 minutes before attack
Kosarian says she had bruises on her legs, hands and left side of her body. She finally got into the building with the help of the receptionist, who came to her aid.
When Kosarian was asked, how did you feel afterwards she broke down and cried on the stand.
Prosecutor Melody Bahai played four 911 tapes, all of them called in by the receptionist during the assault. In the fourth and final call, she pleaded with the dispatcher to send police immediately.
"We're at 501 Beale Street. I've called four times already! Please come to 501 Beale Street-- he grabbed her and threw her to the ground."
"When victims come forward and testify in court, we recognize how courageous that is," said DA spokesman Alex Bastian.
Austin's lawyer Public Defender Saleem Belbahri says it is clear his client was having mental issues.
"Bottom line is Austin was in treatment prior to being taken into custody and he was doing well in treatment."