CNN  —  Reid Seybold’s voice shook as he recalled the texts he sent loved ones from the classroom where he barricaded himself, as a barrage of gunshots, screams and sirens turned his university from a picturesque Florida campus into a crime scene. “I love you,” he wrote to his boyfriend and family. “I may never see you again.” Evidence markers have since been cleared from the lawns and walkways of Florida State University, where shell casings were scattered when the son of a local sheriff’s