On a cold February morning in Rome, I stood before a mirror in a rented room, adjusting a black lace chapel veil, preparing for Mass at St. Peter’s Basilica. The Mass was to celebrate my dear son, Sewell Setzer III, my 14-year-old son, who had taken his own life in our home in Orlando, Florida, exactly one year before. I studied the woman in the mirror—withdrawn, almost gaunt…