Overview
- The Maricopa County Attorney’s Office announced grand-jury charges of first-degree murder, attempted second-degree murder, and criminal damage.
- Police say 17-year-old Rhiana Kemplin was shot while sleeping in her bedroom and died later that day.
- Investigators report a forensic match linking evidence from the scene to a firearm found at Rivera’s residence.
- Court documents state Kemplin’s mother faced an intruder who aimed a gun and pulled the trigger, but the weapon jammed.
- Rivera was arrested the day of the shooting on criminal-damage allegations tied to tire slashing and now remains held on a $1 million cash-only bond with a tentative July 2026 trial date.