The former LA prosecutor who took on OJ Simpson, Marcia Clark, discusses her new book and how evolving media coverage continues to impact high-profile trials, from newspapers in the 1950s to social media and Daniel Penny’s trial earlier this month. The former LA prosecutor who took on OJ Simpson, Marcia Clark, discusses her new book and how evolving media coverage continues to impact high-profile trials, from newspapers in the 1950s to social media and Daniel Penny’s trial earlier this month.