Santa Rosa Police Seize Loaded Ghost Gun During Traffic Stop

• Santa Rosa police arrested 18-year-old Agustin Calderon-Villanueva after a traffic stop on Senna Drive.
• Officers found a loaded, concealed 9-mm ghost gun without a serial number.
• The suspect was booked into Sonoma County Jail on firearm-related charges.
• The arrest happened around 9:49 p.m. Thursday near the 500 block of Senna Drive.

Introduction

Santa Rosa police took another illegal firearm off the streets Thursday night. A traffic stop led to the arrest of an 18-year-old resident and the recovery of a loaded ghost gun.

What Happened During the Traffic Stop

According to the Santa Rosa Police Department, officers stopped Agustin Calderon-Villanueva at around 9:49 p.m. in the 500 block of Senna Drive. During the investigation, police discovered the teen was in possession of a loaded 9-mm ghost gun.

The gun was concealed and had no serial number, making it untraceable. Police did not say what prompted the initial stop.

What Is a Ghost Gun?

Ghost guns are privately made firearms that lack serial numbers. They can be purchased as kits and assembled at home, which makes them extremely difficult for law enforcement to trace. California law requires owners to apply for a serial number and undergo a background check.

Arrest and Charges

Calderon-Villanueva was arrested and booked into Sonoma County Jail for firearm-related offenses. The Sonoma County District Attorney's Office will determine formal charges.

Santa Rosa and Sonoma County Context

Santa Rosa is the largest city in Sonoma County and has been the focus of local efforts to curb illegal gun possession. Law enforcement agencies across the Bay Area regularly conduct operations targeting ghost guns and other untraceable firearms.

Background

California has some of the strictest gun laws in the nation. In 2018, the state began requiring ghost gun owners to obtain serial numbers. Despite this, police continue to recover these weapons in routine stops.

What's Next

Police are reminding residents to report suspicious activity. The investigation is ongoing, and more details may be released by the Santa Rosa Police Department.