(ABC News) -- Video and 911 audio played in a Kentucky courtroom Apr. 14 featured Shayna Hubers describing the moment she fatally shot her boyfriend.
Hubers, now 24, is accused of one count of murder in the October 2012 shooting death of her boyfriend, attorney Ryan Poston. She shot Poston six times.
Prosecutors allege that she shot Poston out of anger after he tried to break up with her. Hubers has pleaded not guilty, saying Poston, a 29-year-old lawyer, was frequently violent, and that she shot him in self-defense.
Hubers was hysterical in a 911 call to authorities, which was played in court Tuesday, the opening day of testimony in the trial.
"He was right in front of me and he reached down and grabbed the gun, and I grabbed it out of his hands and pulled the trigger," she said in the call.
Police interview video, recorded the same night, featured Hubers displaying a wide range of emotion -- crying, pacing and talking to herself.
"I knew he was going to die a very slow and painful death," she said in the video. "He was twitching and moaning, but I knew he was already dead."
At times, she was even seen laughing in the video, joking about the victim's gunshot wounds.
"I gave him a nose job," she said.
She also mused about her dating prospects.
"I don't know if anyone will wanna marry me if they know I killed my boyfriend in self-defense," she said.
But Hubers also alleged in the interview video that Poston was verbally and physically abusive -- throwing her around and insulting her by calling her a hillbilly.
"I guess the hillbilly came out in me, and I stood up for myself," she told investigators.
