Leopoldo López, an ardent opponent of Venezuela's socialist government facing an arrest warrant after President Nicolas Maduro ordered his arrest on charges of homicide and inciting violence, kisses his wife Lilian Tintori, before turning himself in to authorities on Tuesday. Leo Ramirez/AFP/Getty Images hide caption

itoggle caption Leo Ramirez/AFP/Getty Images

This photo, which witnesses say shows Venezuelan beauty queen Genesis Carmona being evacuated from the scene of a protest on Tuesday, is ricocheting around the Web. She died after being shot. /Reuters/Landov hide caption

itoggle caption /Reuters/Landov

Venezuelan opposition leader Leopoldo Lopez (in white shirt) as he turned himself over to police on Tuesday in Caracas. Cristian Hernandez /Xinhua/Landov hide caption

itoggle caption Cristian Hernandez /Xinhua/Landov