Philadelphia District Attorney Larry Krasner’s keynote speaking appearance at a Yale Law School conference later this month was rescinded over the weekend in response to his decision to appeal a judge’s ruling that convicted cop killer Mumia Abu-Jamal should be allowed to reargue his appeal before the Pennsylvania Supreme Court. “We cannot understand how DA Krasner’s decision in this case serves justice or the transformative vision that he ran on,” organizers of the Rebellious Lawyering (RebLaw) conference said in a letter made public Friday night. “We also hear and deeply appreciate the voices of of [sic] law students and activists...