NBCUniversal January 9, 2019 11:23 pm Victim's Family Speaks Out After Cambridge Park Killing A week later, loved ones are still holding out hope for answers after a deadly attack at a Cambridge park. US & World Videos 2:17 MIT and Tufts call for student protesters to shut down encampments 1:49 Finalists in math competition hope their model helps ease housing crisis 2:44 Fire destroys apartment building in Randolph 2:09 Staffer at Kipp Academy in Lynn stabbed by student 3:14 After U.S. tourists' arrests in the Caribbean, a reminder about travel notices