Within the last 5 years, 50 shot/killed  in Orlando, FL 2015 by Omar Mateen, who dedicated his crimes to ISIS in a recorded call with local PD.  14 shot/killed by husband and wife Muslim terrorists in San Bernardino, CA Christmas party 2015.  Over 30 shot by Muslim terrorist/US Army Major Nadal Hassed at Fort Hood.  3 US Army reservists shot by Muslim terrorists in TN.  8 stabbed at MN mall by Muslim terrorist.  6 stabbed at high school in WA by Muslim terrorist.  Over 50 wounded at Boston Marathon by two Muslim terrorists.  5 shot in Ft Lauderdale, FL airport by Muslim terrorist from ANCHORAGE.

Islam is the antithesis of America and is waging war against America.  They call it Civilization Jihad and documented it's operation in a Muslim Brotherhood document found in 2004 in VA, titled "An Explanatory Memorandum On The General Strategic Goal For The Group.

http://counterjihad.com/category/civilization-jihad/
http://www.clarionproject.org/Muslim_Brotherhood_Explanatory_Memorandum#