Boston Etc.

Two Muslim brothers came to America.  One or both was convinced that they would be rewarded in Paradise if they murdered a few innocent human beings. They appear to have thought that the more they killed, the bigger the reward. At some point in their brief lives these Muslim brothers accepted the stupidity of an evil version of Islam - despite the outward appearance of clean cut alter boys.  Which leads to the all important question: 

"How can innocent Muslims be separated from evil Muslims who intend to murder all infidels where ever they find them?"

They can not.