Does "The End Justify The Means?"
No, the end doesn't justify the means because two wrongs don't make a right. In fact, it could make even more wrongs. For example, the Columbine shootings stemmed from the shooters being bullied, but that didn't justify taking out 15 people, including themselves. It didn't even help their problems, either. All it did was create a national tragedy and waste their lives on a minuscule problem. The revenge seekers that pull these kinds of acts may feel better in the short term, but in the long haul, it won't undo what happened and might just make things even worse.
"Columbine High School Shootings." History.com. A&E Television Networks, 2009. Web. 11 Oct. 2014.