Justice Sonia Sotomayor expressed concerns about Florida’s lethal injection procedure on Tuesday, urging more transparency as the Supreme Court denied a man’s emergency bid to avoid execution later in the day. The seniormost liberal justice voted with her colleagues to allow Melvin Trotter’s execution to move forward over the 1986 murder of a grocery store owner, saying Trotter hadn’t shown enough evidence that the state will mangle the procedure. “Even so,...