Bay Area/ North SF Bay Area

Santa Rosa Man Arrested for Weapons Violations After Accidental Shotgun Blast

AI Assisted Icon
Published on June 30, 2025
Santa Rosa Man Arrested for Weapons Violations After Accidental Shotgun BlastSource: Santa Rosa Police Department

On Saturday, at around 3:46 PM, officers were alerted to an incident involving an explosion on the 300 block of Harvest Lane. The Santa Rosa Police Department responded to the situation, which initiated a series of events leading to the arrest of a local man for multiple weapons violations.

Investigations revealed that Jonathan StJern, a 42-year-old resident of Santa Rosa, had accidentally discharged a shotgun. The blast from the modified weapon traveled through a bedroom wall and into an adjacent room, fortunately without causing injury. A statement released by the Santa Rosa Police mentioned that StJern, on probation for earlier offenses, was not permitted to possess weapons.

Later that evening, police intervention escalated when StJern attempted to flee his apartment. Although he tried to escape from the residence's rear, officers strategically placed there apprehended him without incident. He resisted arrest but was ultimately taken into custody without injury to himself or officers. At the time of his arrest, StJern possessed an unconventional homemade 9mm pistol. Officers conducted a probation search of his residence, employing an interior drone to ensure the safety of all parties before entering.

The residence revealed an alarming arsenal. A grenade was found and examined by the Sonoma County Sheriff's Office Bomb Squad, deemed inert, and reclaimed. Alongside the inert grenade, authorities uncovered spent shotgun shells, nunchakus, various knives, ammunition, multiple firearm weapon parts, makeshift weapons, and suspected fentanyl, among other contraband.

StJern faces a list of charges, including the possession of an unconventional pistol, a silencer, nunchaku, ammunition by a felon, a zip gun, a concealed firearm, and resisting arrest. He was also charged with possession of a controlled substance, a controlled substance while armed, and negligent discharge of a firearm.