. >> john cronin, redwood city. >> reporter: and john cronin who served 30 years with the redwood city fire department died of a job related illness. nearly half of those honored during the ceremony died of job- related cancer but the pandemic also took a toll. all of the fallen firefighters were praised for their dedication. >> in my opinion, the word hero applies more to them than to any other group of citizens or public servants. >> reporter: flags were presented to the grieving families. and then the final wringing of three bells marking the end of the fallen firefighters duty and a return to home. the names of each of the 82 firefighters who died will be etched in stone at the memorial in sacramento. their sacrifices etched in our memory. >>> president biden has tested positive for covid-19 again and this has some questioning the effectiveness of the treatment the president was given more than a week ago. we have the expert analysis from one of the region's top infectious disease doctors. >> reporter: the sobering news came late saturday morning. president biden had tested positiv