Key facts
- A shooting occurred outside a high school graduation ceremony in California.
- One 18-year-old was killed in the incident.
- Three people were injured, including an 11-year-old child.
- Police are investigating the shooting and interviewing witnesses.
A shooting occurred outside a high school graduation ceremony in Northern California, resulting in the death of an 18-year-old and injuries to three other individuals. Among those injured was an 11-year-old child. Investigators are interviewing witnesses as they piece together the events of the deadly shooting.