This week's bonus episode comes from the limited-run podcast On Our Watch from NPR and KQED. One of the first police shootings to be captured on cell phone, millions saw Bay Area Rapid Transit police Officer Johannes Mehserle fire a single, fatal gunshot into Oscar Grant's back as the 22-year-old lay face down on the train station platform. Now, a lawsuit filed by NPR member station KQED has forced BART to comply with California's 2019 police transparency law, and release never-before-heard tapes from inside that investigation.