Massachusetts May 6, 2020 4:21 pm Four F-15 Fighter Jets Fly Over Mass. to Honor Frontline Workers At approximately 12 p.m. on Wednesday, F-15 jets flew over Boston to pay their respects to front line workers during the fight against COVID-19. US & World Videos 2:31 Billerica police sergeant killed in crash honored at funeral 2:05 MIT monitors pair of opposing protests on campus 3:41 Cool air to linger over Boston into the weekend 2:01 Remembering Billerica police Sgt. Ian Taylor 3:17 Cooling back down, weekend turns wet in Boston