Thousands of people have signed an online petition seeking an independent investigation into how Morgan Hill police handled the investigation into the disappearance and murder of Marissa DiNapoli.

The Brief Martin Mendoza, 20, was arrested at the Mexico border for the death of ex-girlfriend, Marissa DiNapoli of Morgan Hill. Mendoza was "uncooperative" with the police investigation.

Prosecutors allege an 18-year-old Morgan Hill woman whose body was discovered last week near the Anderson River was stabbed five times in the back by her boyfriend.

Marissa Dinapoli, 18, of Morgan Hill, was found dead on Wednesday, July 2, 2025, several days after she was reported missing. (Morgan Hill Police Department) DiNapoli was first reported missing ...

Marissa DiNapoli (Photo via Morgan Hill Police Department) Following a missing person search, her remains were discovered at Anderson Lake County Park in the Woodchoppers Flat Picnic Area on July 2.

Martin Mendoza, 20, was arrested at the Mexico border for the death of ex-girlfriend, Marissa DiNapoli of Morgan Hill.

The man who allegedly killed 18-year-old Morgan Hill resident Marissa DiNapoli has been charged with murder as new details emerge about the case, according to Santa Clara County court records.

Dinapoli's family and thousands in the community are calling for an investigation into the Morgan Hill police's handling of her disappearance, believing the police failed to act with urgency.

(KRON) — A man who Morgan Hill police identified as a suspect in the killing of 18-year-old Marissa DiNapoli has been found and arrested, authorities announced Monday morning. Martin Mendoza,… ...