A retrial to decide whether convicted murderer Jodi Arias is sentenced to life in prison or the death penalty has been pushed back from March 17th because of a prosecutor's scheduling conflict. Prosecutor Juan Martinez is supposed to begin another potential death penalty trial on May 12th. In a hearing Tuesday in Maricopa County Superior Court, Presiding Criminal Judge Joseph Welty ruled the trial of a man accused of killing a Phoenix-area police officer in 2007 will go first. It is the oldest capital murder case in the county awaiting trial. Welty left the rescheduling of Arias' penalty phase retrial to Judge Sherry Stephens. Arias was convicted in May 2013 of killing her boyfriend at his suburban Phoenix home in 2008, but the jury could not reach a verdict on her sentence.