A new Government Accountability Office report examines school shooting data by type, location, time of day, school year and relationship of the shooter to the school community.

Police officers' role in school safety is under scrutiny thanks to video of the arrest of a 6-year-old charter student in Orlando, Florida.

Students have a greater chance of coping with traumatic childhood experiences and succeeding in class when they can turn to a trusted adult at school.

Many health experts are cautious about laying blame when tragedies occur. But most specialists agree that school personnel, in contact with students for a large part of the day, can be a key resource in providing help.