As a young prosecutor on the House Select Committee on Assassinations, Broward Circuit Judge Mark Speiser led a team investigating the killing of the Rev. Martin Luther King Jr., dug into the Ku Klux Klan and questioned James Earl Ray’s brother on the witness stand.

It was “a once-in-a-lifetime opportunity, a congressional investigation. It wasn’t necessarily practicing law. It was just an opportunity to participate in the reinvestigation of the assassinations of one former president and one former civil rights leader,” he said.