Heights High School active shooter call was unfounded, Houston
False active shooter reports made at multiple Texas schools
More than a dozen schools across Colorado receive unfounded threats
Texas Report Finds Police Failures in Uvalde School Shooting - WSJ
Uvalde Elementary School Shooting: 'It Was the Wrong Decision
Student detained in shooting hoax falsely accused of 'swatting
Timberview High School shooting leaves four injured; suspect arrested
Hoax school shooting calls keep happening, and there's a pattern : NPR
SAPD says 'hoax' shooting call at Medical Center building is one
Heights High's hoax active shooter threat is a new trend
False active shooter reports at schools are having serious
Police confirms active shooter report at Ray High School was false
Hoax calls put schools in eastern Washington on alert -- including
School shooting hoaxes are still happening. Here's what we know
The school shooting is fake. Can it prepare an officer for a real one?