Massachusetts February 6, 2024 5:41 pm Revere Public Schools installing specialty locks for classroom doors The school district is investing in a new lock system in an effort to keep students safe in the case of a school shooting. US & World Videos 1:54 Authorities looking for man accused of sexual assault in Cambridge 0:17 Child injured after being struck by car outside Saugus mall 2:23 Search for suspect after sexual assault reported in Cambridge 4:09 Budgets, staffing, and social media can all impact violence in schools, administrators say 2:35 Sumner Tunnel closed for weekend