Minneapolis school shooter was 'obsessed with killing children,' say authorities

Shooter kills two Minneapolis schoolchildren in Catholic school, injures 17

Nashville school shooting leaves two dead, including shooter

Teen girl's motive unclear in Wisconsin Christian school shooting

Shooter among three killed in Wisconsin school shooting

Father of teen suspected of killing four at Georgia school arrested

Father of Michigan school shooter also convicted of manslaughter

Nashville school shooter had 'emotional disorder'

Police release footage of Nashville school shooter and firearms

Florida school mass shooter to be sentenced to life in prison

Jury recommends life in prison for Parkland school shooter