 In 1989, von Einem was charged with the murders of Barnes and Langley, but the prosecution entered a "nolle prosequi" (voluntarily discontinue criminal charges) during the trial when crucial similar fact evidence was deemed inadmissible by the presiding judge.Von Einem was also one of the last people seen with Muir following his abduction.Apart from von Einem, three other core members are thought to be directly involved in the murders, although while DNA testing re-commenced in 2008 no further charges have been laid.