Marcos Martinez, 24, was found competent to stand trial on March 20, as Judge Lawrence Wharton found him mentally competent after reviewing Arizona State Hospital evaluation reports.
Martinez is accused of murdering his 62-year-old grandmother, Vicky Ten Hoven. She was found dead from multiple stab wounds and blunt force trauma in her Maricopa home on Jan. 28, 2018.
Prosecutors have until May 31 to determine if they will seek the death penalty against Martinez.
He is scheduled to appear in Pinal County Superior Court on May 24 for a status review and he remains in the Pinal County Jail pending the posting of a million-dollar bond.