New evidence implicates Libyan militias in an apparent execution of dozens of detainees in rebel custody following the capture and death of Muammar Gaddafi last year, a watchdog has said. In a report released detailing Gaddafi's final hours on October 20, 2011, Human Rights Watch said it had gathered evidence that Misrata-based militias captured and disarmed members of the dictator's convoy and subjected them to brutal beatings.