News Wrap: Pfizer says COVID pill cuts serious risks by 90%

In our news wrap Friday, Pfizer announced strong results for a pill to treat COVID-19. Trials show it cuts infections and deaths by nearly 90 percent in high-risk adults. Three white men accused of murdering Ahmaud Arbery, a Black man, formally went on trial in Brunswick, Georgia. Mexican authorities are condemning Thursday's eruption of drug violence along the Caribbean coast.