Christina Grimmie's brother, Marcus, is still coming to terms with "The Voice" contestant's tragic death two years ago. Grimmie, a rising star in the music world, was shot and killed during a post-concert meet-and-greet 2016. She was 22. Marcus helped launch the Christina Grimmie Foundation in her honor, with the goal of helping those hurt by tragedy the same way he was comforted by others. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.