(AP) Dozens of people attending a rally in Michigan have released balloons to mark the four-year anniversary of Iran's refusal to free a former Marine from prison. The helium balloons said, "Free Amir," a reference to 32-year-old Amir Hekmati. Rain suddenly stopped Saturday in Bay City as about 100 people turned out to hear remarks from Hekmati's family, Congressman Dan Kildee and others.