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PHOENIX -- On her eighth day of testimony, murder defendant Jodi Arias described killing her boyfriend, Travis Alexander, on June 4, 2008, at his home in Mesa.
Arias told the jury she and Alexander argued that day over some scratched CDs, then had what she described as "makeup sex."
The two then went into Alexander's bathroom, where Arias used Alexander's camera to take pictures of him.
Arias said their final fight began when she accidentally dropped Alexander's camera.
"Travis flipped out. He picked me up, called me a 'stupid idiot,' and body-slammed me on the tile," Arias said on the stand.
Arias testified she was scared for her life.
"Who knows [what he was going to do]? He'd already almost killed me," she said, referring to a day several weeks earlier in which she said Alexander choked her until she blacked-out.
Arias said she got up and ran into Alexander's closet.
"I remembered where he kept a gun, and I grabbed it. He ran chasing me. I pointed it at him so he'd stop chasing me," she continued, "I turned around and pointed it at him with both hands. I thought it'd stop him."
Arias said Alexander tackled her.
"Like a linebacker he got low and grabbed my waste. The gun went off. I didn't mean to shoot him. I was just pointing it at him. He lunged at me and we fell."
Arias sobbed as she testified.
"We were struggling and wrestling. He's a wrestler. He got on top of me.I didn't want him to get on top of me. When he'd done that in the past I couldn't' get out of the holds," Arias said.
"And he was telling me he was going to kill me."
This is where Arias' memory gets spotty, accordant to her testimony.
"There's a lot of that day I don't remember. A lot of gaps," she said.
Arias told the jury she has "no memory" of stabbing Travis Alexander nearly 30 times, and no memory of dragging him across the floor.
"I just remember trying to get away from him," she said.
"I have a vague memory of putting the knife in the dishwasher," Arias added, saying she stabbed Alexander with the knife he had used to cut rope the two used to tie her up during sex.
"I was in the bathroom. I remember dropping the knife, and it clanged on the tile. I remember screaming. I don't remember anything after that."
Arias and her attorney reviewed key parts of her testimony, trying to prove her case of self-defense.
"It was mortal terror," Arias said, "He was angry at me and wasn't going to stop."
When her attorney asked, "Did you feel he was going to kill you?" Arias responded, "For sure. He'd almost killed me before"
Afterwards, Arias said she started driving.
"I couldn't believe what had happened. I couldn't take back what had happened. I couldn't rewind the clock."
She found herself driving through the desert, toward the Hoover Dam and Las Vegas.
"I remember throwing [the gun] in the desert," she said, "I knew that it was really bad and my life was probably done now."
Arias said at that point, she was not sure if Alexander was dead of alive.
Her attorney asked why, if she was defending herself, she did not call 911.
"I was scared. I couldn't imagine calling 911 and telling them what I'd just done," Arias responded, "I was scared of what would happen to me."