On Tuesday, Arias' younger sister, Angela Arias, said her sister's statements during the "48 Hours" interview were lies, and that Alexander's death was an act of self-defense on her sister's part during an incidence of domestic violence.
"She was not under oath when she spoke on TV and yes, she lied," Angela Arias wrote on Facebook after The Huffington Post sent her a request for comment. "But, it was because she was so in love with that man she did not want people to know what a monster he really was. She wanted everyone to believe that he was as amazing as they thought he was."
Arias' third story is detailed in recent court documents as part of a request she made to admit electronic copies of letters allegedly written by Alexander between November 27, 2006, and May 27, 2008.
"Defendant had previously attributed the crime to intruders. She now argues that all of the letters must be admitted to support her domestic violence defense," prosecutors wrote in a motion to preclude the letters. "Defendant argues that the letters are relevant to her claim of self-defense and that she was a victim of previous 'sexual and physical abuse' by Mr. Alexander."
Arias, according to prosecutors, is claiming Alexander "became angry when she dropped his camera" and she was forced to kill him in self-defense. Angela Arias made reference to this defense in a Facebook post Tuesday.
"My sister is innocent of the crime they are accusing her of ... She did kill Travis but it was not in cold blood, it was not for revenge, it was because she was afraid for her life," Angela Arias wrote.