With the Trayvon Martin shooting still fresh in their minds, opponents of an effort to make Ohio the newest “stand your ground” state are circulating petitions and preparing for a fight when state lawmakers return. Members of the Ohio Legislative Black Caucus have been hosting rallies and circulating petitions at churches and businesses, looking to create grassroots opposition to House Bill 203, a gun bill that includes a “stand your ground” provision. County prosecutors and a variety of law-enforcement groups also oppose the provision, which would eliminate an Ohio law requiring a person to retreat before using deadly force in...