Somerville February 10, 2019 7:45 am Watertown Teacher Killed in Hit-and-Run Allison Donovan, 40, was struck and killed Friday night while walking in a Somerville crosswalk with another woman. US & World Videos 1:23 Canton firefighter testifies in Karen Read murder trial 2:30 Protests continue at Tufts University 2:19 Here's how to stay up to date on the Karen Read trial 0:45 Karen Read trial Day 3: Witness testimony resumes 1:56 Campus unrest continues at Boston schools