Suspect dead and three others wounded in YouTube headquarters shooting

Incident took place at San Bruno campus on Tuesday afternoon

A shooting took place at the YouTube headquarters in California on Tuesday (April 3), with a female suspect dead of an apparent suicide and three others wounded.

Police responded to reports of an active shooter at the YouTube campus in San Bruno, just south of San Francisco, arriving at 12:48 local time.

Reports in the US have named the suspect as Nasim Aghdam, describing the incident as a domestic dispute. Aghdam is thought to have died of a self-inflicted gunshot wound.

Aghdam is said to have approached an outdoor dining area during lunch time, opening fire with a handgun and causing a “chaotic scene”.

A 36-year-old man, who some reports say is believed to be Aghdam’s boyfriend, remains in a critical condition, while two women, aged 32 and 27, are also thought to have been shot and wounded.

“At this time there is no evidence that the shooter knew the victims of this shooting or that individuals were specifically targeted,” police have said.

Donald Trump, criticised for his response to the Parkland shooting, tweeted of the incident: “Was just briefed on the shooting at YouTube’s HQ in San Bruno, California. Our thoughts and prayers are with everybody involved. Thank you to our phenomenal Law Enforcement Officers and First Responders that are currently on the scene.”

Incidents involving a female shooter are rare, with only 3.8% “active shooter” occurrences in the US between 2000 and 2013 perpetrated by a woman.

YouTube employee Vadim Lavrusik had tweeted from the scene: “Active shooter at YouTube HQ. Heard shots and saw people running while at my desk. Now barricaded inside a room with coworkers.”

Another employee, Todd Sherman, wrote: “We were sitting in a meeting and then we heard people running because it was rumbling the floor. First thought was earthquake.”

Sherman added that he had seen “blood drips on the floor and stairs” before he was eventually safely evacuated.

More as this story develops