A possible Northern California high school shooting was prevented thanks to a report sent into a tip line created by a nonprofit that aims to prevent gun violence, the organization said. Sandy Hook Promise said in a statement Monday that the Sequoia Union High School District was able to stop the potential school shooting from taking place after a student reported that a classmate was exhibiting warning signs in their Instagram posts. The student then sent that information to the organization's "Say Something" anonymous reporting tip line.

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