We're going to shift gears. We have shocking moments monday in the jodi arias trial. Prosecutors played tapes of the day that arias lied about her boyfriend being killed. Ryan owens is covering the... See More
We're going to shift gears. We have shocking moments monday in the jodi arias trial. Prosecutors played tapes of the day that arias lied about her boyfriend being killed. Ryan owens is covering the trial from phoenix. Good morning, ryan. Reporter: George, good morning to you. It's quite fascinating. The prosecutor is using jodi arias' own words, along with pictures they took that day, against her. He is shredding credibility. If I killed travis, I would beg for the death penalty. Reporter: Those words from a woman who admits she did kill travis alexander, and now faces the death penalty. The jury that decides if jodi arias gets that sentence, appeared riveted to this interrogation video. It was taped july 2008, a month after arias repeatedliy stabbed and shot her boyfriend. I looked at the map. I know where I went. Reporter: She craws them a map, to say she was nowhere near alexander's mesaonariza, home. What would you show if you were there? Will that change your mind? I wasn't there. Reporter: At which point the detective confronts arias with what police found on this camera in alexander's washing machine. Prosecutors say she tried to wash away evidence. But on its memory card, police discovered a series of photos from the day alexander died. The jury saw explicit pictures of an intimate encounter the couple had that afternoon, including this one of arias posing on alexander's bed. Followed by nearly 20 shots of alexander in the shower. Prosecutors say less than a minute after snapping them, arias attacked her unsuspecting victim. The 32-year-old cried as the jury saw the last moments of alexander's life. Jodi, this is over. This is absolutely over. You need to tell me the truth. Listen, the truth is, I did not hurt travis. Reporter: Years after that first interrogation video, arias would finally confess, say she killed in self-defense. Her attorneys will argue to this jury that alexander abused and controlled arias. And she killed him to save her own life that day. The defense is going to be someone to come in and clean up the mess of her multiple stories and explain that in some kind of a narrative. Reporter: Many court observers believe jodi arias will take the stand. She almost has to to make that self-defense claim stick. By then, the prosecutor is hoping the jury will have heard so many lies, they won't believe a word out of her mouth. George? Hard to see what kind of story she could tell. Now, we're going to turn to
This transcript has been automatically generated and may not be 100% accurate.