December 7, 2023 11:18 am Man in Waltham crash that killed police officer, worker held without bail A 54-year-old New Hampshire man accused of crashing into and killing a police officer and utility worker pleaded not guilty in court on Thursday. US & World Videos 2:32 Prosecutors turn over notes turn over Proctor notes in Walshe case 0:55 Beverly Jewish community meets to discuss violent antisemitic threat arrest 2:23 Police investigate violent attack in Chelsea High School classroom 2:46 Passenger opens emergency door on taxiing plane at Logan Airport, police say 2:34 Healey floats idea to abolish broker fees