The ORGANIZATION@1 massacre was a school shooting consisting of two separate attacks approximately two hours apart on April NUMBER@1 , NUMBER@2 , that took place on the campus of ORGANIZATION@2 -LRB- ORGANIZATION@1 -RRB- in LOCATION@1 , LOCATION@2 , LOCATION@3 .

The ORGANIZATION@1 massacre was a school shooting incident on April NUMBER@1 , NUMBER@2 , which took place at the ORGANIZATION@2 , a college in LOCATION@1 , LOCATION@2 , LOCATION@3 .
