Just days after the U.S. Supreme Court shot down a ban on rapid-fire gun bump stocks as on infringement on gun-owners’ constitutional rights, at least 15 people were injured in mass shootings at a children’s splash park in Michigan and a park in Texas. “In my worst nightmare, I couldn’t imagine standing up here again talking about another active shooter,” Oakland County Sheriff Michael Bouchard Bouchard said at a news conference Saturday evening nine were injured in the shooting in Rochester Hills, Michigan, just north of Detroit. At least six were also injured Saturday at a Juneteenth festiva…