When Nagui Morcos came back to our studio last winter, we didn't know it, but he was coming to say goodbye. This time, he brought his wife, Jan Crowley with him. They sat down for nearly an hour with Brian, and spoke frankly about how they both grappled with Nagui's difficult choice to end his own life. Six weeks after that conversation, on Earth Day, Nagui followed through on his vow to act before Huntington's disease robbed him of the ability to do so --  he took his life.