North Carolina Teen Indicted on Murder Charges in San Diego Mosque Attack
Prosecutors say the grand jury charge shows that helping stream or spread extremist plans online can carry murder liability across state lines
Overview
- A 17-year-old North Carolina resident, Sarah Lindsey Santiago, was arrested and indicted on three counts of murder and one count of conspiracy for her alleged role in the May 18 mosque shooting in San Diego.
- Prosecutors allege Santiago agreed to livestream the attack, posted the attackers’ manifesto online, and purchased a white‑supremacist patch that was sent to and used by one of the shooters.
- The two gunmen, identified as Cain Clark, 17, and Caleb Vazquez, 18, killed three men at the Islamic Center of San Diego and later died by suicide while about 140 children were in the building.
- Federal and local investigators say the multiagency probe included more than 100 interviews, over 30 search warrants and a review of more than four million messages that led to the charges.
- Santiago will be tried as an adult in North Carolina and could be convicted of murder under state law for aiding or conspiring in killings, a development that highlights legal risks tied to remote online facilitation of real‑world violence.