NEW YORK -- Two freelance journalists are the recipients of the 2021 American Mosaic Journalism Prize for work about underrepresented or misrepresented groups, which comes with a $100,000 award for each of them.The awards from the Heising-Simons Foundation are for excellence in long-form or narrative work.David Dennis, Jr., who is based in Atlanta, wrote an Atlantic magazine piece, “Ahmaud Arbery Will Not be Erased,” about the murder of a young Black man in Georgia.