HOUSTON -

The woman accused of shooting and killing a man during an argument at a southeast Houston gas station held a news conference Tuesday afternoon.

Shanequia McDonald was soft spoken and stood by community activist Quanell X as she explained why she shot and killed a man in a gas station parking lot.

"I just went to the gas station to get gas. I didn't go to hurt or harm anyone and I was just protecting myself from what happened," McDonald said.

The deadly shooting happened Sunday night at a gas station on Cullen Boulevard in southeast Houston. McDonald says she was pumping gas when a man, identified as 58-year-old Louis Daniels, started making sexual advances towards her.

The advances, McDonald says, then became violent and he was armed with a knife.

Seconds later, video surveillance shows McDonald opened her trunk, grabbed her rifle and opened fire. Bullets hit the ground and ricocheted, hitting Daniels.

Before leaving the gas station, the video shows McDonald topping off her tank and snapping a picture of the man. Quanell X says McDonald took the picture to prove Daniels had a knife.

"His behavior on videotape shows he was a man begging for the graveyard," Quanell X said.

Quanell X is the same man who has lead marches in Houston surrounding the "Stand Your Ground" law in Florida, but on Tuesday he put his support behind McDonald.

"Ms. McDonald followed the law and the law in the state of Texas says you do not have to retreat when your life is in danger. She stood directly behind that law and that law was written just for cases like Ms. McDonald," he said.

McDonald, 23, has not been charged, but the case is being referred to a Harris County Grand Jury for review.

We'll have more on this story today on Local 2 News at 6pm.