Related by context. Frequent words. (Click for all words.) 36 shootings 34 handguns 32 sniper shootings 31 Columbine High 31 concealed carry 31 powered rifle 31 Maurice Clemmons 30 Dylan Klebold 30 shooting spree 29 Robida 29 spokeswoman Monique Bond 28 concealed weapons 28 Malvo 28 Klebold 27 Fort Hood Texas 27 shooting rampage 27 JonBenet 27 Fort Hood 27 gunman 27 Darrent Williams 26 moderate Hutus 25 lone gunman 25 Derrick Bird 25 Arapahoe County 25 Tyler Clementi 25 Crandon 25 Tutsis 24 Sjodin 24 Virginia Tech 24 Bruce Ivins 24 Columbine 23 Morva 23 terrorist attacks 23 room schoolhouse 23 Seung Hui Cho 22 Ivins 22 Dupnik 22 Hainstock 21 Mayerthorpe 21 Loughner 21 JonBenet Ramsey 21 Rep. Gabrielle Giffords 21 Littleton Colo. 20 massacre 20 postelection violence 20 Alfred P. Murrah 20 Coors Field 20 Blanning 20 Littleton 20 Prevent Gun Violence 20 Blacksburg 20 George Tiller 20 Arvada 19 Odgren 19 Kazmierczak 19 Holocaust Memorial 18 Hengel 18 Hickenlooper 18 Dunblane 18 Cho Seung Hui 17 Giffords 17 Eveleth 17 rampage 17 Congresswoman Gabrielle Giffords 17 Jared Loughner 17 Hinckley 16 Nazi Holocaust 16 Matthew Shepard 16 Colorado Springs 15 Harvey Milk 15 cyberbullying 15 hijacked planes 15 Colorado 15 Penley 15 Vail Mountain 14 Unabomber 14 Beslan 14 Fort Collins 14 Mauser 14 cyber bullying 13 Jeffco 13 Arapahoe 13 John Hickenlooper 13 Weise 13 Phoebe Prince 13 Lee Loughner 13 Boulder 13 Basalt 13 prairie dogs 12 Michael Bennet 12 classmates 11 Ward Churchill 11 Cherry Creek 10 7NEWS 10 Bill Ritter 9 Garfield 9 yearbook 9 Holocaust 8 bullying 7 Poudre 2 GLSEN