A Texas appeals court has refused extend liability for a 2003 drug-fueled stabbing incident beyond that of the assailant, according to the Austin American-Statesman. Dustin McManus was sentenced to a 15-year prison sentence after he stabbed 10 high school students during a Halloween party while he was under the influence of hallucinogenic mushrooms and marijuana. Two of the victims had sought to extend the circle of responsibility to friends that had brought McManus to the party.