PHOENIX (AP) -- A March 2016 trial date has been set for a Phoenix man charged with fatally stabbing his 12-year-old half-brother.
Authorities say 27-year-old Andrew Ward killed Austin Tapia on March 12 and explained his motive by saying, "Honestly, I just felt like killing."
Prosecutors are seeking the death penalty.
Ward pleaded not guilty to a murder charge in Tapia's death.
While in a Maricopa County jail, Ward was charged with first-degree murder in the April 2 death of his cellmate.
Investigators say Ward used a golf pencil to stab 33-year-old Douglas Walker in the eyes, beat him and forced a plastic bag and peanut butter sandwich down Walker's throat.
Ward has pleaded not guilty in Walker's death.
No trial date has been set in that case.
Death penalty sought against man in boy's death
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Phoenix man pleads not guilty in fatal stabbing of half-brother
Man accused of stabbing 12-year-old brother to death said he 'just felt like killing'