Here we go!
"Do what we want and we will stop the violence...."
Excuse me!
Arrest them for inciting terrorist acts. Fill the prisons with these murderers.
Show them terrorism, extortion, violence do not work against the government.
Perhaps all of them should be deported and sent back to whatever black hole they came from. I haven't the foggiest how to separate the good from the bad, or even if we should bother. But we should do something, and quick.