If the woman suspected of the shooting at YouTube headquarters is proven to be the shooter, she will be a very rare woman in the grim history of mass shootings: Almost all of them are carried out by men.
San Bruno Police Department Chief Ed Barberini said Tuesday that the woman found dead at YouTube headquarters in California appeared to have acted alone. He said the suspect was found dead of self-inflicted gunshot wounds. At least three other people were wounded.
On Tuesday night, CNN identified the suspect as Nasim Aghdam.
A Mother Jones study of mass shooters since 1982 found that of about 100 mass shooters, only two were women, and one was by a woman who shot alongside a man.