John Simpson, 56, carries a sign showing an image of Trayvon Martin during a demonstration in reaction to the acquittal of neighborhood watch volunteer George Zimmerman on Monday, July

 

              John Simpson, 56, carries a sign showing an image of Trayvon Martin during a demonstration in reaction to the acquittal of neighborhood watch volunteer George Zimmerman on Monday, July
John Simpson, 56, carries a sign showing an image of Trayvon Martin during a demonstration in reaction to the acquittal of neighborhood watch volunteer George Zimmerman on Monday, July 15, 2013, in Los Angeles. Anger over the acquittal of the U.S. neighborhood watch volunteer who shot dead an unarmed black teenager continued Monday, with civil rights leaders saying mostly peaceful protests will continue this weekend with vigils in dozens of cities. (AP Photo/Jae C. Hong)