A protest outside the White House last May. Photo by Evy Mages In a federal lawsuit filed earlier this week, Kenneth Walker—the boyfriend of 26-year-old EMT Breonna Taylor, who was fatally shot by police in her apartment last March—alleges that Louisville police flagrantly violated his and Taylor’s Fourth Amendment rights during the violent raid. To help him make that case, he has retained two Washington constitutional law experts: former US solicitor general Donald Verrilli Jr. and Georgetown Law professor Cliff Sloan. “It’s very important for him to get vindication—to get justice and accountability,” says Sloan of his client. “It’s also a way to honor the memory and life of Breonna Taylor, and of trying to ensure that nothing like this happens again.”