Fear and panic at Florida State as deadly shooting sends students fleeing / Many municipalities say they have prepared for school shooting incidents / Sweden to tighten gun laws after mass shooting at school / Swedish police say 'multiple nationalities' among victims of school mass shooting / Inside Sweden school shooting with 'blood on classroom walls' and 'bodies everywhere' / Sweden: 10 dead in school shooting, police say / Sweden school shooting: Five shot as police warn 'danger not over' / Nashville school district defends no metal detectors before school shooting: 'Unintended consequences' / Police investigating motive behind Nashville school shooting case