Defense attorney Mark O'Mara (2nd R) uses a foam dummy to describe the altercation between George Zimmerman and Trayvon Martin to defense witness and law enforcement expert Dennis Root (R) during Zimmerman's murder trial in Semimole circuit court July 10, 2013 in Sanford, Florida. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin.
{"Image ImageDescription": "SANFORD, FL - JULY 10:  Defense attorney Mark O'Mara (2nd R) uses a foam dummy to describe the altercation between George Zimmerman and Trayvon Martin to defense witness and law enforcement expert Dennis Root (R) during Zimmerman's murder trial in Semimole circuit court July 10, 2013 in Sanford, Florida. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin. (Photo by Gary W. Green-Pool/Getty Images)", "Image Copyright": "2013 Getty Images"}