About: http://webisa.webdatacommons.org/119848026

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Columbine and other incidents since then have changed police tactics significantly.
http://www.w3.org/ns/prov#wasQuotedFrom	thetruthaboutguns.com