Article Photos: Relatives clash over 911 call in Fla. shooting 4/7

Volusia and Seminole County associate medical examiner Shiping Bao MD testifies during George Zimmerman's trial in Seminole circuit court, Friday, July 5, 2013 in Sanford, Fla. Zimmerman has been charged with second-degree murder for the 2012 shooting death of Trayvon Martin. (AP Photo/Orlando Sentinel, Gary W. Green, Pool)