Gunman

US: 7 shot, 1 fatally, in latest Baltimore violence

Dutch tram shooting: Police arrest man suspected of opening fire on tram

Gunman kills 3 on Dutch tram, mayor says terror likely

Florida: 2 killed, 11 injured after gunman opens fire during video game competition in Jacksonville

US shooting: 5 dead, several injured as gunman opens fire at The Capital newspaper in Annapolis

Heroic act: This dramatic video shows student takedown gunman with his bare hands