“Since September 2001 nearly twice as many people (in the US) have been killed by white supremacists, anti-government fanatics and other non-Muslim extremists than by radical Muslims:
48 have been killed by extremists who are not Muslim including the recent mass killing in Charleston S.C. compared with 26 by self-proclaimed jihadists, according to a count by New America, a Washington research centre.”
Source: The New York Times, 25 June 2015.