MADISON, Wis.—The state Supreme Court dismissed a lawsuit April 30 alleging a firearms website that enabled a man to illegally purchase the pistol he used in a mass shooting at a suburban Milwaukee spa six years ago is liable in the killings, ruling that federal law grants the site operators immunity.
The court ruled 5-1 that the federal Communications Decency Act protects Armslist LLC, a firearms classifieds website. The act absolves website operators of any liability resulting from posting third-party content.