In regards to today's discussion on media's freedom of speech, this example may be a relevant to the topic. George Tiller, an abortion doctor was murdered. Could the murderer possibly be influenced by Bill O'Reilly and his years long view against Tiller using names like "Tiller the Baby Killer"?
CNN Story on the murder
http://www.cnn.com/2009/CRIME/05/31/kansas.doctor.killed/index.html
O'reilly's views against George Tiller
http://www.huffingtonpost.com/2009/06/01/bill-oreilly-crusaded-aga_n_209665.html
O'reilly's Response
http://www.foxnews.com/story/0,2933,524344,00.html
You decide.