(Based on the Columbine High School shooting which took place on April 20,1999. They could have definitely killed certain people who were somehow allowed to live, such as Brooks Brown, John Savage and others as well, so that explains why I believe they at least partially lost focus after their bombs failed to explode.)  

Screams of dismal terror echo throughout the hallways,

As round after round of deadly ammunition is fired,

From the guns of two angry and possibly bullied students,

Who have nothing to lose as the slaughter commences.

Bodies are riddled with bullets in this horrific rampage,  

While many wounded classmates cry out in severe agony.

Yet some who were meant to die are spared instead,

While others not targeted become victims of homicide.

But the body count could have indeed been much higher,

Had the perpetrators' homemade bombs actually gone off,

Exploding inside the cafeteria and elsewhere as well,

Resulting in perhaps hundreds of dead and wounded,

Many survivors to be picked off like human target practice,

Had those twisted plans became successful in the first place.

Yet this failure did not in any was deter these brutal criminals,  

Who instead continued unloading multiple clips of ammunition, 

As one teenager after another dies in the cruel butchery,

Finally the two heartless maniacs blow their own brains out,

Thus ending a truly shocking and disturbing outburst of mayhem.

While the public is mortified and disgusted beyond all sense of normality.