Obama has also been using the phrase “senseless violence” to describe the Newtown massacre.

From The Blaze:

President Barack Obama on Sunday paid tribute to the victims of the Holocaust by vowing to “stand in the way of any tyrant or dictator who commits crimes against humanity.” 
“We honor the memories of the 6 million Jews and millions of other innocent victims whose lives were tragically taken during the Holocaust over sixty years ago,” Obama said in a statement marking International Holocaust Remembrance Day. “Those who experienced the horrors of the cattle cars, ghettos, and concentration camps have witnessed humanity at its very worst and know too well the pain of losing loved ones to senseless violence.” 
Obama has invoked the phrase “senseless violence” multiple times in his push for more gun control following the Newtown, Conn. massacre. 
Jan. 27 marks the anniversary of the 1945 liberation of the Auschwitz concentration camp, designed as part of the Nazis’ “Final Solution” to systematically exterminate the Jews — a deliberate act that while incomprehensible, was hardly “senseless.”
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