A lawsuit has been filed by the mother of a teenager involved in a mass shooting. She claims a mental health facility failed to take action despite warnings from federal law enforcement. The teenager was receiving treatment for various conditions, including depression.

The lawsuit alleges the facility did not intervene even though the teenager posed a threat to himself and others. Further details are available about the case and the lawsuit.

The court filings come after convictions of guardians who provided weapons used in mass shootings. The lawsuit provides new information about the events leading up to the shooting.