She told the jury to spare her, not on her own behalf, but the spare her family more pain and because she could contribute to the lives of her fellow prison inmates.
In a nearly 20-minute presentation, Arias clicked through a slideshow of pictures of her life from the time she was a child, pictures of her artwork, and showed off her "survivor" t-shirts, which would benefit victims of domestic violence.
Arias also ran down a few of her ideas on how she might become "employed and self-reliant," should she spend her life behind bars, rather than fighting round after round of appeals if given the death penalty.
"In prison there are programs I can start, and people I could help," she said.
"A few months before trial, my hair was past my waist, I donated it to Locks of Love," the organization that donates wigs to cancer patients, she said. "If I'm allowed to live in prison, I will continue to donate to that organization for the rest of my life."
She offered to teach her fellow inmates Spanish or American Sign Language, and to start a recycling program at the prison.
"Along the lines of literacy, I'd like to start a book club or a reading group, something that brings people together in a positive and constructive way," she said.
The jury began debating her fate Tuesday, and will continue their deliberations Wednesday.