What Really Happened the Night of Jodi Arias' Rampage?

ABC News' Elizabeth Vargas walks through the fateful night Travis Alexander was murdered.
2:56 | 05/11/13

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Transcript for What Really Happened the Night of Jodi Arias' Rampage?
But we begin with the jodi arias trial. The convicted killer now waiting to learn her fate. The penalty phase in the trial begins wednesday. So many of us were captivated by the four-month trial filled with graphic details. So here's the question what really happened the night travis alexander was killed? Abc news re-created his home and "20/20's" elizabeth vargas walks us through the scene now. Reporter: What happened between this photo, travis alive, staring intently at the camera, to this photo suddenly slumped in the shower. One minute and ten seconds that changed everything. Dan abrams, legal analyst for abc news, makes the case for the prosecution. So she's taking photos of him and asks for one final picture. At some point the prosecution says she gets a knife that's right. And stabs him. That's when it starts and he staggers to the sink, somehow gets here, trying to sort of balance himself. Reporter: At the same time she continues stabbing him according to prosecution in the middle of his back, the attack continued. The attack continues. He somehow continues to try to get away and then around here right at the edge of the bedroom he collapses. And at this point she slits his throat according to prosecution and we know this because a massive blood stain on the carpet in this location. They believe that is what killed him. At this point she then decides to drag him back into the bathroom and balance herself she puts her hand up on the wall. At that point leaves a bloody palm print. Very important piece of evidence because that's what placed her at the seen definitively in addition to the photographs. And she manages to drag him all the way back into the bathroom and this is where we find the shell casing. So he was shot at some point in the bathroom. Self-defense or premeditated cold-blooded murder? It took just 15 hours of deliberation for the jury to decide. We the jury duly impaneled and sworn do find the defendant guilty. Reporter: As relatives wept and crowds cheered, arias looked into the eyes of the jury that will now decide whether she lives or dies. In an interview she granted with a local station, she says she would rather face death. I said years ago that I'd rather get death than life and that's still true today. If I hurt travis, if I killed travis I would beg for the death penalty. Reporter: Arias is now on suicide watch. She says she wishes she could take it all back. I have a million regrets. I wish that it was just a nightmare that I could wake up from. Reporter: And for the relatives of travis that's perhaps as close to an apology as jodi arias will ever come.

This transcript has been automatically generated and may not be 100% accurate.

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