Lawsuit claims missed red flags before San Diego mosque mass shooting

Key Points:

• Federal law enforcement warned the parents of Caleb Vazquez about his concerning comments on school shootings just days before he and another teenager carried out a mass shooting at a San Diego mosque.
• Vazquez's mother alleges in a lawsuit that Park Mental Health Treatment failed to intervene despite signs that her son posed an imminent threat, despite him receiving treatment for depression and psychotic episodes.
• The FBI contacted Vazquez's mother on May 14, who then notified the treatment facility, but Vazquez left the facility the night before the shooting, and it is unclear if this was permitted.
• Vazquez and another teenager killed three people at the mosque before taking their own lives; authorities say the shooters met online and were radicalized there.
• Park Mental Health disputes the lawsuit's claims, stating that Vazquez and his accomplice alone bear responsibility for the shooting, while earlier signs of Vazquez's dangerous behavior included prior hospitalization and confiscation of firearms from his father.