https://shariaunveiled.wordpress.com/2013/07/11/muslim-acts-of-beheading-inside-the-united-states/
Here are just a few cases of beheadings in the U.S. in the past decade:
Ariel Sellouk – Houston, Texas: August 2003: throat was slit and beheaded.
Hossam Armanious, Amal Garas, Sylvia Armanious, and Monica Armanious, – Jersey City, NJ: January 2005: necks, throats and bodies stabbed, mutilation of Coptic tattoo.
Aasiya Hassan – Buffalo, NY: 2009: Beheaded by her husband Muzzammil Hassan
Brendan Mess, Erik Weissman, and Raphael Teken – Waltham, Massachusetts: September 2011: throats slit, probably by Tamerlan and Dzhokhar Tsarnaev, the Boston Marathon bombers.
Hany F. Tawadros and Amgad A. Konds – Jersey City, NJ: February 2013: shot, decapitated, hands severed.