The Washington County Sheriff's Office says a tip call about a Town of Addison woman helped foil a school shooting plot in Indiana. An anonymous tip call to the Sandy Hook Promise Violence Hotline said that a 19-year-old Town of Addison woman might be plotting a mass school shooting.

A collaborative effort between law enforcement agencies has thwarted a planned school shooting set for Valentine’s Day, involving an 18-year-old Indiana woman and a 19-year-old Wisconsin resident. The Washington County Sheriff’s Office in Wisconsin acted on a tip from the Sandy Hook Promise Violence Hotline,

The suspect was grieving the death of their mother, bullied at school after being hit by a drunk driver and became fixated by mass shooters, police said.