I'm thinking of those dead Marines in Chattanooga, shot in their recruiting office by muslims.  
I'm thinking of the dead in San Bernardino.
I'm thinking of the dead and maimed at the Boston Marathon. 

I'm thinking of the 149 people taken hostage in Washington DC this week 40 years ago at the Hanafi siege. 

https://en.wikipedia.org/wiki/1977_Hanafi_Siege