Throughout her two weeks on the witness stand, Arias has made numerous assertions that Alexander owned a gun, physically abused her, and had illicit desires for children, none of which have been corroborated by testimony or witnesses.
Martinez concluded his cross-examination of Arias last week after hammering her repeatedly over her lies and efforts to create an alibi immediately after she killed Alexander.
She acknowledged that she dumped the gun in the desert, got rid of her bloody clothes, tried to clean the scene at Alexander's home, and even left the victim a voicemail on his mobile phone within hours of killing him and dragging his body into the shower. She said she was too scared and ashamed to tell the truth.
Arias' grandparents had reported a .25 caliber handgun stolen from their Northern California home about a week before the killing — the same caliber used to shoot Alexander — but Arias says she never knew her grandfather had the weapon. Authorities believe she brought it with her, though she has testified she shot Alexander with his own gun as he chased her into his closet after body-slamming her and threatening to kill her.
Alexander had also been stabbed and slashed nearly 30 times and had his throat slit.
Arias is charged with first-degree murder in the June 2008 attack in Alexander's suburban Phoenix home. She says it was self-defense, but police say she planned the killing in a jealous rage.
Arias initially told authorities she had nothing to do with Alexander's death then blamed it on masked intruders before settling on self-defense.