September 8, 2017 1:00 am Watch Your Step at City Hall Plaza The NBC Boston Investigators are looking at injuries sustained at City Hall Plaza, and the laws that prevent the city from paying out damages. US & World Videos 4:09 Budgets, staffing, and social media can all impact violence in schools, administrators say 2:35 Sumner Tunnel closed for weekend 2:16 Bruins fans disheartened by season-ending loss 20:21 Karen Read trial: Jen McCabe testifies ‘hos long' search was made after John O'Keefe was found 3:17 Featuring ‘age-friendly' employers