An aggravated assault case against George Zimmerman that was opened when his ex-girlfriend said he threw a wine bottle at her has been dropped because she recanted her story and stopped cooperating with investigators, a prosecutor said Friday. State Attorney Phil Archer said he wouldn’t file a formal charge against Zimmerman, the former neighborhood watch leader who was acquitted of killing Trayvon Martin. The killing of the unarmed black teen touched off protests across the country.The ex-girlfriend had made it clear she didn’t want to cooperate with Lake Mary Police officers, and there were no other eyewitnesses to what happened...