@CNN: Family members of the woman who opened fire at YouTube’s headquarters this week were stunned by news of the attack, but said they warned police ahead of the shooting https://t.co/ySoIJ5KOAH

@CNN: Family members of the woman who opened fire at YouTube’s headquarters this week were stunned by news of the attack, but said they warned police ahead of the shooting https://t.co/ySoIJ5KOAH