(CNN) The Arizona Court of Appeals on Tuesday upheld Jodi Arias' murder conviction and life sentence in the 2008 killing of her ex-boyfriend, rejecting her assertions that she was denied a fair trial.

Arias was convicted in 2013 and sentenced to life in prison in 2015 for killing her ex-boyfriend, 30-year-old Travis Alexander. His body was found -- stabbed, shot in the face and slit in the neck from ear to ear -- in the shower of his Mesa, Arizona, home.

Now 39, Arias appealed her conviction and sentence, arguing partly that trial publicity -- including live media coverage of the proceedings -- and a prosecutor's alleged misconduct deprived her of a fair trial and impartial jury.

Jodi Arias is sentenced in 2015 as her lawyer, Jennifer Willmott, looks on.

• The prosecutor did engage in misconduct by being hostile and aggressive "with each witness whose testimony was inconsistent with the state's theory of the case."

Read More