And to whom do these belong? You can't blame these on the left.

Timothy McVeigh and the Oklahoma City bombing, April 19, 1995
Wisconsin Sikh Temple massacre, Aug. 5, 2012.
The murder of Dr. George Tiller, May 31, 2009. 
Knoxville Unitarian Universalist Church shooting, July 27, 2008
The Centennial Olympic Park bombing, July 27, 1996. 
The murder of Barnett Slepian by James Charles Kopp, Oct. 23, 1998.
Planned Parenthood bombing, Brookline, Massachusetts, 1994.
Suicide attack on IRS building in Austin, Texas, Feb. 18, 2010
The murder of Alan Berg, June 18, 1984.