Whitney Houston’s brother Gary Houston, sister-in-law/manager Patricia Houston, and daughter Bobbi Kristina sit down with Oprah Winfrey for the first time since the pop legend’s death last month. Bobbi Kristina shares personal memories of her mother and the family addresses the speculation surrounding Houston’s tragic passing in the exclusive interview, airing Sunday at 9 p.m. on “Oprah’s Next Chapter” on OWN. Watch a preview below.