An Arizona judge presiding over the high-profile murder trial of Jodi Arias could on Monday schedule jury selection to begin in September to decide whether the former waitress from California should be executed for slaying her ex-boyfriend.

Judge Sherry Stephens is expected to decide on a date for the new penalty phase for Arias, who was found guilty in May for the 2008 murder of Travis Alexander. A jury then deadlocked on her punishment.