In the first case of its kind, the City of New Orleans files a lawsuit against gun manufacturers seeking reimbursement for costs related to gun violence in the city. In subsequent years, dozens of cities follow New Orleans, resulting in more than 30 lawsuits. In response, more than 20 states have passed laws making the gun industry immune from these lawsuits. The gun industry counters that it should not be liable for the unlawful actions of third parties.