A Cow Hollow man's alleged "psychotic breakdown" led to his arrest, as officers responded to shots fired at a home—and discovered 57 firearms stashed there.

On August 29th at 6:49pm, officers responded to reports of shots fired at a residence at Laguna and Green streets. A witness told police that they had fled the home for their own safety, as their friend was having a "psychotic breakdown" and was in possession of a firearm. As the witness was leaving the building, they heard several shots fired indoors.

After creating a perimeter, officers spoke with a man standing in the doorway where the suspect had last been seen. The man, 63-year-old Jack Dane, was detained without incident, and investigators later identified him as the suspect. Dane has been booked on several gun-related charges, including shooting at an inhabited dwelling and willfully and negligently discharging a firearm.

Booking photo of Jack Dane.

Upon investigating the home, police discovered and seized a whopping 57 firearms, including 17 semi-automatic rifles (some of which were machine guns, according to police) and 40 handguns. [Update: As commenters have noted, police likely meant that it was a mix of semi-automatic and fully automatic firearms, totaling 17.]

While the suspect remains in jail, the investigation is ongoing. Anyone with information is asked to contact the SFPD anonymous tip line at (415) 575-4444, or text a tip to TIP411 and begin the text message with 'SFPD.'