Zero Hour Massacre at Columbine High. Word Search Puzzle Solver. Zero Hour Massacre at Columbine High word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. This movie covers the final hour leading up to the Columbine High Massacre. On April 20 1999 two boys from Columbine High School in Colorado embarked on a massacre and killed 12 students one teacher and injured 21 other students before turning the guns on themselves. This includes identifying and searching for words that are related to : Alan K Sapp, Josh Young, History, Gabriel Antonacci, Drama, Alison Anthony, David Morrissey, Crime, TV Movie, Shane Harbinson, James Gilbert, Documentary, Ben Johnson, Alex Macdonald .