The gun used in a fatal Nashville school shooting was purchased in Arizona, police said on Thursday afternoon.

The investigation into why a Nashville high school student fatally shot a classmate before killing himself has centered on his online writings, which authorities describe as concerning warning signs.

Law enforcement officials seeking a motive for a shooting at Nashville’s Antioch High School on Wednesday morning are ...

Police say the gun used in the Nashville school shooting was purchased in Arizona as detectives piece together why the high ...