August 12, 2018 8:05 am Boston Police Officers Perform With Brad Paisley Two Boston Police officers famous for their rendition of “God Bless America” got the chance to perform with Brad Paisley at the Xfinity Center in Mansfield on Saturday. 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