By Debbie Emery - Breaking Celebrity News Reporter

Travis Alexander's sister is convinced Jodi Arias murdered her brother in cold blood, and she wants the brunette beauty to get the death penalty so she can "watch her die."

As Breaking Celebrity News previously reported, Jodi -- a 32-year-old photographer from Yreka, Calif., -- is accused of shooting 30-year-old motivational speaker Travis Alexander, a devout Mormon, in the face with a .25-caliber gun and then stabbing him 27 times and slitting his throat from ear to ear in his Mesa, Arizona home in June of 2008.

If convicted, Arias could face the death penalty.

"I know this might sound creepy, but I hope to get to watch her die someday after she's on death row. Even if it's in 20 years from now, the death penalty is what she deserves, though she most likely won't get it and instead will get some life sentence," Travis' sister, Tanisha Sorenson, told HLNTV.

After initially saying that she wasn't with Travis on the night of his death – even though  a bloody handprint placed her at the scene -- Arias next claimed that two masked intruders broke in and attacked them both, but she claimed she was too scared to call the police. She then changed her story again, citing self-defen