Family of YouTube shooter Nasim Aghdam speaks to ABC News' Matt Gutman.

Nasim Agdham's family told ABC News they did not know their daughter was violent, nor that she owned a gun.

Nasim Aghdam practiced shooting at a gun range not long before the attack at YouTube headquarters in California, investigators said.

The father of the woman who allegedly opened fire at YouTube's headquarters in Northern California this week told reporters how sorry he is in the wake of the shooting.

Inside the open space, there is "tremendous accessibility," an expert told ABC News.

A nearby restaurant owner said two wounded people rushed over to him.

Police also revealed that Nasim Aghdam, 39, of San Diego, went to a local gun range hours before she stormed the YouTube campus with a legally owned handgun around lunchtime.

The suspect in the shooting at the YouTube campus, Nasim Aghdam, killed herself after the shooting.

Police say the alleged shooter went to a local shooting range hours before she stormed the San Bruno YouTube campus.

The lunchtime shooting sent YouTube employees fleeing for their lives.

A nearby restaurant owner said two wounded people rushed over to him.

Nasim Najafi Aghdam allegedly opened fire at YouTube's California headquarters, injuring three people before killing herself, according to police.

San Bruno Police Chief Ed Barberini tells "GMA" what police have uncovered about the suspect and what's next in the investigation.

The suspect, Nasim Najafi Aghdam, reportedly had a vendetta against YouTube.