Overview

• Martin Mendoza was arraigned Tuesday in San Jose on first-degree murder and knife-use charges and denied bail
• Prosecutors allege 18-year-old Marissa DiNapoli was stabbed five times in the back based on court documents and forensic findings
• Over 30 investigators from 15 local, state and federal agencies collaborated on the homicide probe
• Community members have held candlelight vigils, grief-healing circles and domestic violence awareness sessions
• DiNapoli’s family launched a petition calling for an independent review of the Morgan Hill Police Department over alleged bias and early response failures