Tags: columbine shooting columbine high school massacre columbine shooting real footage full video library eric harris and dylan klebold eric & dylan rare clip parents school violence school shootings finland school massacre 2008 killer robert a. hawkins pekka eric auvinen virginia tech shooter cho sung virginia tech college massacre video shooting spree slaughter rampage cho seung hui manifesto Virginia Tech School Shooting Massacre littleton police 2007 Video Cell Phone Gunman Campus Police Firing Cops death victims suicide SWAT columbine shooting columbine shooting cafeteria footage eric harris and dylan klebold cctv caught on camera real video footage school shooters eric and dylan home video library suicide 911 call brutal violence shooting gangster shot killing murder graphic footage video scary audio videos security brutality mass murder killings guns weapons guns in school 911 call schol shooting massacre 420 april 20th 1999 4/20/99 chs columbine rachel scott cassie bernall eric harris dylan klebold shooters tragedy columbine high school massacre 20 april 1999 police msnbc news live evacuation stupid reporter killing spree Rachel Scott Daniel Rohrbough Dave Sanders Kyle Velasquez Steven Curnow Cassie Bernall Isaiah Shoels Matthew Kechter Lauren Townsend John Tomlin Kelly Fleming Mauser Corey DePooter littleton victims tragedy tragically killed killing spree murder spree mass murders eric and dylan kipland kinkel kip kinkel thurston high massacre finlan school <b>…</b>