Original sentence: , pistols with barrel shrouds that enable handling guns firing large numbers of rounds).After Columbine, the Tec-9 became largely iconic and closely-aligned in the public's mind with respect to Columbine; this association is seen in the Super Columbine RPG.The TEC-DC9 variant was among the weapons used by Eric Harris and Dylan Klebold in the 1999 Columbine High School Massacre.The use of the TEC-DC9 at Columbine in April 1999 also led California to amend its 1989 Roberti-Roos Assault Weapons Control Act (AWCA) later the same year, effective January 2000, to ban firearms having newly-introduced firearm features used at Columbine (e.online video game, released on April 20, 2005, on the anniversary of the massacre, which centers around the Tec-9 (although the TEC-DC9 was the actual variant of the gun used
Edited sentence: A TEC-DC9 variant was among the weapons used by Eric Harris and Dylan Klebold in the 1999 Columbine High School Massacre