CBS News is mourning the loss of Maria Mercader, a network veteran who covered breaking news for nearly three decades and, most recently, helped shape strategy for the network's correspondents and reporters. Maria was 54 and died from the Covid-19 coronavirus in a New York hospital. She had been on medical leave for an unrelated matter since the last week in February. Maria fought cancer and related illnesses for more than 20 years, and was an inspiration each time she returned to work after a setback threatened to end her life. "