Sarah Santiago is accused of disseminating a livestream of the May attack and releasing the writings of the suspects, according to an indictment. The authorities said the 17-year-old from North Carolina had recorded the attack, which killed three people in May. Key points and original sources are listed below.

• Sarah Santiago is accused of disseminating a livestream of the May attack and releasing the writings of the suspects, according to an indictment.S1

• The authorities said the 17-year-old from North Carolina had recorded the attack, which killed three people in May. “She ran with the pack — she shared in the kill,” the district attorney said.S2

• In North Carolina, aiding-and-abetting charges carry the same punishment as if the girl had committed the attack herselfS3

• North Carolina DA says girl, 17, who disseminated attackers’ manifesto charged with murder by aiding and abettingA 17-year-old North Carolina girl who recorded a livestream of a shooting that killed three people at a San Diego mosque and disseminated the attac...S4